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Страница 114 - гдз по химии 8 класс учебник Рудзитис
Авторы: Рудзитис Г. Е.
Тип: Учебник
Издательство: Просвещение
Год издания: 2019 - 2022
ISBN: 978-5-09-088251-4
Допущено Министерством просвещения Российской Федерации
Популярные ГДЗ в 8 классе
Cтраница 114
App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php #connection: "mysql" #table: "book_pages" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 1368112 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "114" "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/page-114" "field_display_title" => "114" "field_folder" => "1" "field_image_name" => "114" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1037 #items: array:1 [ 0 => App\Models\Book {#1006 #connection: "mysql" #table: "books" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:50 [ "id" => 524 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_tree_default_status" => "tasks" "field_pages_status" => null "field_subject" => Illuminate\Database\Eloquent\Collection {#1009 #items: array:1 [ 0 => App\Models\Term {#1007 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:10 [ "id" => 6495 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Химия" "field_abbreviated_name" => null "field_cases" => array:6 [ "field_accusative_case" => "химию" "field_creative_case" => "химией" "field_dative_case" => "химии" "field_genitive_case" => "химии" "field_nominative_case" => "химия" "field_prepositional_case" => "химии" ] "field_foreign_lang_name" => null "field_short_name" => null "field_subject_type" => "technical_subject" "field_translit" => "himiya" ] #original: array:10 [ "id" => 6495 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Химия" "field_abbreviated_name" => null "field_cases" => array:6 [ "field_accusative_case" => "химию" "field_creative_case" => "химией" "field_dative_case" => "химии" "field_genitive_case" => "химии" "field_nominative_case" => "химия" "field_prepositional_case" => "химии" ] "field_foreign_lang_name" => null "field_short_name" => null "field_subject_type" => "technical_subject" "field_translit" => "himiya" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_class" => Illuminate\Database\Eloquent\Collection {#1010 #items: array:1 [ 0 => App\Models\Term {#1011 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 5457 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "8" "field_cases" => array:6 [ "field_accusative_case" => "восьмой" "field_creative_case" => "восьмым" "field_dative_case" => "восьмому" "field_genitive_case" => "восьмого" "field_nominative_case" => "восьмой" "field_prepositional_case" => "восьмом" ] "field_translit" => "vosmoj" ] #original: array:6 [ "id" => 5457 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "8" "field_cases" => array:6 [ "field_accusative_case" => "восьмой" "field_creative_case" => "восьмым" "field_dative_case" => "восьмому" "field_genitive_case" => "восьмого" "field_nominative_case" => "восьмой" "field_prepositional_case" => "восьмом" ] "field_translit" => "vosmoj" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012 #items: array:1 [ 0 => App\Models\Term {#1013 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 5153 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Просвещение" "field_cases" => null "field_translit" => "prosveschenie" ] #original: array:6 [ "id" => 5153 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Просвещение" "field_cases" => null "field_translit" => "prosveschenie" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_author" => Illuminate\Database\Eloquent\Collection {#1014 #items: array:1 [ 0 => App\Models\Term {#1015 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:12 [ "id" => 5630 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Рудзитис" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Гунтис" "field_patronymic" => "Екабович" "field_surname_rp" => null ] #original: array:12 [ "id" => 5630 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Рудзитис" "field_bio" => null "field_degree_rp" => null "field_foreign_lang_name" => null "field_foreign_lang_patronymic" => null "field_foreign_lang_surname" => null "field_name" => "Гунтис" "field_patronymic" => "Екабович" "field_surname_rp" => null ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1016 #items: [] #escapeWhenCastingToString: false } "field_book_type" => Illuminate\Database\Eloquent\Collection {#1017 #items: array:1 [ 0 => App\Models\Term {#1018 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:10 [ "id" => 6671 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Учебник" "field_book_type_foreign" => null "field_cases" => array:6 [ "field_accusative_case" => "учебник" "field_creative_case" => "учебником" "field_dative_case" => "учебнику" "field_genitive_case" => "учебника" "field_nominative_case" => "учебник" "field_prepositional_case" => "учебнике" ] "field_plural_form" => null "field_short_name" => null "field_short_name_foreign" => null "field_translit" => "uchebnik" ] #original: array:10 [ "id" => 6671 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Учебник" "field_book_type_foreign" => null "field_cases" => array:6 [ "field_accusative_case" => "учебник" "field_creative_case" => "учебником" "field_dative_case" => "учебнику" "field_genitive_case" => "учебника" "field_nominative_case" => "учебник" "field_prepositional_case" => "учебнике" ] "field_plural_form" => null "field_short_name" => null "field_short_name_foreign" => null "field_translit" => "uchebnik" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_country" => Illuminate\Database\Eloquent\Collection {#1019 #items: array:1 [ 0 => App\Models\Term {#1020 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 9 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Россия" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_translit" => "rossiya" ] #original: array:6 [ "id" => 9 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Россия" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_translit" => "rossiya" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_city" => Illuminate\Database\Eloquent\Collection {#1021 #items: array:1 [ 0 => App\Models\Term {#1022 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 15 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Москва" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_translit" => "moskva" ] #original: array:6 [ "id" => 15 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "Москва" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_translit" => "moskva" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_series" => Illuminate\Database\Eloquent\Collection {#1023 #items: [] #escapeWhenCastingToString: false } "field_umk" => Illuminate\Database\Eloquent\Collection {#1024 #items: [] #escapeWhenCastingToString: false } "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1025 #items: [] #escapeWhenCastingToString: false } "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1026 #items: array:1 [ 0 => App\Models\Term {#1027 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:10 [ "id" => 6706 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "ФГОС (старый)" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_color" => null "field_end_year" => "2022" "field_start_year" => "2019" "field_translit" => "fgos-old" "field_type" => null ] #original: array:10 [ "id" => 6706 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "ФГОС (старый)" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_color" => null "field_end_year" => "2022" "field_start_year" => "2019" "field_translit" => "fgos-old" "field_type" => null ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_publication_number" => "11" "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1028 #items: array:1 [ 0 => App\Models\Term {#1029 #connection: "mysql" #table: "terms" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 33 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "стереотипное" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_translit" => "stereotipnoe" ] #original: array:6 [ "id" => 33 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "name" => "стереотипное" "field_cases" => array:6 [ "field_accusative_case" => null "field_creative_case" => null "field_dative_case" => null "field_genitive_case" => null "field_nominative_case" => null "field_prepositional_case" => null ] "field_translit" => "stereotipnoe" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1030 #items: [] #escapeWhenCastingToString: false } "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2019" "field_publication_year_until" => "2022" "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для общеобразовательных организаций" "field_allowed" => "Допущено Министерством просвещения Российской Федерации" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "418" "field_priority" => "8" "field_default_folder" => "/himiya_08/rudzitis-u/" "field_isbn" => "978-5-09-088251-4" "field_cover" => array:1 [ 0 => "/media/himiya_08/rudzitis-u/covers/cover1.webp" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/himiya_08/rudzitis-u/covers/cover1.webp" "alt" => "" "width" => "1444" "height" => "2154" ] ] "field_popular_book" => "0" "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1031 #items: [] #escapeWhenCastingToString: false } "field_new_book" => Illuminate\Database\Eloquent\Collection {#1032 #items: [] #escapeWhenCastingToString: false } "field_old_book" => Illuminate\Database\Eloquent\Collection {#1033 #items: [] #escapeWhenCastingToString: false } "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1034 #items: [] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "breadcrumbs" => array:3 [ "class" => 379 "subject" => 558 "class_subject" => 498 ] ] #original: array:50 [ "id" => 524 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_tree_default_status" => "tasks" "field_pages_status" => null "field_subject" => Illuminate\Database\Eloquent\Collection {#1009} "field_class" => Illuminate\Database\Eloquent\Collection {#1010} "field_publisher" => Illuminate\Database\Eloquent\Collection {#1012} "field_author" => Illuminate\Database\Eloquent\Collection {#1014} "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1016} "field_book_type" => Illuminate\Database\Eloquent\Collection {#1017} "field_country" => Illuminate\Database\Eloquent\Collection {#1019} "field_city" => Illuminate\Database\Eloquent\Collection {#1021} "field_series" => Illuminate\Database\Eloquent\Collection {#1023} "field_umk" => Illuminate\Database\Eloquent\Collection {#1024} "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1025} "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1026} "field_publication_number" => "11" "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1028} "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1030} "field_under_the_edition_degree" => null "field_cover_description" => null "field_publication_year" => "2019" "field_publication_year_until" => "2022" "field_part" => "" "field_part_writing" => "" "field_second_foreign_language" => null "field_for_whom" => "Учебник для общеобразовательных организаций" "field_allowed" => "Допущено Министерством просвещения Российской Федерации" "field_reserve_field" => null "field_link_to_source" => null "field_tasks_count" => "418" "field_priority" => "8" "field_default_folder" => "/himiya_08/rudzitis-u/" "field_isbn" => "978-5-09-088251-4" "field_cover" => array:1 [ 0 => "/media/himiya_08/rudzitis-u/covers/cover1.webp" ] "field_cover_alts" => array:1 [ 0 => "" ] "field_covers" => array:1 [ 0 => array:4 [ "path" => "/media/himiya_08/rudzitis-u/covers/cover1.webp" "alt" => "" "width" => "1444" "height" => "2154" ] ] "field_popular_book" => "0" "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1031} "field_new_book" => Illuminate\Database\Eloquent\Collection {#1032} "field_old_book" => Illuminate\Database\Eloquent\Collection {#1033} "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019" "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1034} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "breadcrumbs" => array:3 [ "class" => 379 "subject" => 558 "class_subject" => 498 ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#1035 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1046 #items: array:1 [ 0 => App\Models\Element {#1045 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1580411 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1055 #items: array:1 [ 0 => App\Models\Edition {#1047 #connection: "mysql" #table: "editions" #primaryKey: "id" #keyType: "int" +incrementing: false #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 4499 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "title" => "Условие" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1049 #items: array:1 [ …1] #escapeWhenCastingToString: false } "field_content_type" => "free" "field_content_mode" => "text, image" "field_page_content_mode" => "image" "field_content_text_checked" => null "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "pasha" "field_edition_type" => "statement" "field_root_dir" => "0-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1050 #items: [] #escapeWhenCastingToString: false } "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1051 #items: [] #escapeWhenCastingToString: false } "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1052 #items: [] #escapeWhenCastingToString: false } "field_content_source" => null ] #original: array:21 [ "id" => 4499 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "title" => "Условие" "field_order" => "1" "field_publisher" => Illuminate\Database\Eloquent\Collection {#1049} "field_content_type" => "free" "field_content_mode" => "text, image" "field_page_content_mode" => "image" "field_content_text_checked" => null "field_page_content_text_checked" => "0" "field_solution_author" => "Автор" "field_moderator" => "pasha" "field_edition_type" => "statement" "field_root_dir" => "0-" "field_responsible" => Illuminate\Database\Eloquent\Collection {#1050} "field_comment" => null "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1051} "field_process_formula" => "katex" "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1052} "field_content_source" => null ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "book_page" => array:2 [ "refs" => "1368112" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ "name" => "114-1.jpg" "alt" => null "width" => "962" "height" => 1302 "path" => "/media/himiya_08/rudzitis-u/0-1/114-1.webp?ts=1757414784" ] ] ] #original: array:6 [ "id" => 1580411 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1055} "book_page" => array:2 [ "refs" => "1368112" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ "name" => "114-1.jpg" "alt" => null "width" => "962" "height" => 1302 "path" => "/media/himiya_08/rudzitis-u/0-1/114-1.webp?ts=1757414784" ] ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => Illuminate\Database\Eloquent\Collection {#5641 #items: array:1 [ 0 => App\Models\BookPage {#5642 #connection: "mysql" #table: "book_pages" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 1368114 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "115" "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/page-115" "field_display_title" => "115" "field_folder" => "1" "field_image_name" => "115" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5658 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5657 #items: array:1 [ 0 => App\Models\Book {#1006} ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#5656 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#5820 #items: array:1 [ 0 => App\Models\Element {#5643 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1580412 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#5822 #items: array:1 [ …1] #escapeWhenCastingToString: false } "book_page" => array:2 [ "refs" => "1368114" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ …5] ] ] #original: array:6 [ "id" => 1580412 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#5822} "book_page" => array:2 [ "refs" => "1368114" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ …5] ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1368115" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1368112" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#5654 #items: [] #escapeWhenCastingToString: false } ] #original: array:21 [ "id" => 1368114 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "115" "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/page-115" "field_display_title" => "115" "field_folder" => "1" "field_image_name" => "115" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5658} "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5657} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#5656} "content" => Illuminate\Database\Eloquent\Collection {#5820} "next" => array:2 [ "refs" => "1368115" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1368112" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#5654} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "previous" => Illuminate\Database\Eloquent\Collection {#5636 #items: array:1 [ 0 => App\Models\BookPage {#5635 #connection: "mysql" #table: "book_pages" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:21 [ "id" => 1368111 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/page-113" "field_display_title" => "113" "field_folder" => "1" "field_image_name" => "113" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5637 #items: [] #escapeWhenCastingToString: false } "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5638 #items: array:1 [ 0 => App\Models\Book {#1006} ] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#5639 #items: [] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#5649 #items: array:1 [ 0 => App\Models\Element {#5648 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1580410 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#5650 #items: array:1 [ …1] #escapeWhenCastingToString: false } "book_page" => array:2 [ "refs" => "1368111" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ …5] ] ] #original: array:6 [ "id" => 1580410 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#5650} "book_page" => array:2 [ "refs" => "1368111" "type" => "book_page" ] "img" => array:1 [ 0 => array:5 [ …5] ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1368112" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1368110" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#5640 #items: array:9 [ 0 => App\Models\Task {#5661 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367508 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-1" "field_display_title" => "1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5665 #items: array:1 [ …1] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5664 #items: [] #escapeWhenCastingToString: false } "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5663 #items: array:1 [ …1] #escapeWhenCastingToString: false } "parent_branches" => Illuminate\Database\Eloquent\Collection {#5700 #items: array:3 [ …3] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#5698 #items: array:3 [ …3] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1367509" "type" => "task" ] "previous" => array:2 [ "refs" => "1367507" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#5694 #items: array:1 [ …1] #escapeWhenCastingToString: false } "page" => array:2 [ "refs" => "1368111" "type" => "book_page" ] ] #original: array:24 [ "id" => 1367508 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-1" "field_display_title" => "1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5665} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5664} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5663} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5700} "content" => Illuminate\Database\Eloquent\Collection {#5698} "next" => array:2 [ "refs" => "1367509" "type" => "task" ] "previous" => array:2 [ "refs" => "1367507" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#5694} "page" => array:2 [ "refs" => "1368111" "type" => "book_page" ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 1 => App\Models\Task {#5666 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367509 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-2" "field_display_title" => "2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5707 #items: array:1 [ …1] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5695 #items: [] #escapeWhenCastingToString: false } "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5693 #items: array:1 [ …1] #escapeWhenCastingToString: false } "parent_branches" => Illuminate\Database\Eloquent\Collection {#5697 …2} "content" => Illuminate\Database\Eloquent\Collection {#5670 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5681 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367509 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-2" "field_display_title" => "2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5707} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5695} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5693} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5697 …2} "content" => Illuminate\Database\Eloquent\Collection {#5670 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5681 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 2 => App\Models\Task {#5696 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367510 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-3" "field_display_title" => "3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5669 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5680 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5679 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5682 …2} "content" => Illuminate\Database\Eloquent\Collection {#5685 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5706 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367510 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-3" "field_display_title" => "3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5669 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5680 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5679 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5682 …2} "content" => Illuminate\Database\Eloquent\Collection {#5685 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5706 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 3 => App\Models\Task {#5683 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367511 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-4" "field_display_title" => "4" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5684 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5699 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5708 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5667 …2} "content" => Illuminate\Database\Eloquent\Collection {#5668 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5735 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367511 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-4" "field_display_title" => "4" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5684 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5699 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5708 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5667 …2} "content" => Illuminate\Database\Eloquent\Collection {#5668 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5735 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 4 => App\Models\Task {#5701 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367512 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-5" "field_display_title" => "5" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5672 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5734 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5736 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5724 …2} "content" => Illuminate\Database\Eloquent\Collection {#5726 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5749 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367512 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-5" "field_display_title" => "5" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5672 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5734 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5736 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5724 …2} "content" => Illuminate\Database\Eloquent\Collection {#5726 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5749 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 5 => App\Models\Task {#5733 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367513 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-6" "field_display_title" => "6" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5723 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5748 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5750 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5746 …2} "content" => Illuminate\Database\Eloquent\Collection {#5745 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5763 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367513 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-3-6" "field_display_title" => "6" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5723 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5748 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5750 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5746 …2} "content" => Illuminate\Database\Eloquent\Collection {#5745 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5763 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 6 => App\Models\Task {#5747 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367514 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-4-1" "field_display_title" => "1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5744 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5762 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5764 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5840 …2} "content" => Illuminate\Database\Eloquent\Collection {#5833 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5831 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367514 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-4-1" "field_display_title" => "1" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5744 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5762 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5764 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5840 …2} "content" => Illuminate\Database\Eloquent\Collection {#5833 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5831 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 7 => App\Models\Task {#5801 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367515 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-4-2" "field_display_title" => "2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5847 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5832 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5830 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5837 …2} "content" => Illuminate\Database\Eloquent\Collection {#5838 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5818 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367515 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-4-2" "field_display_title" => "2" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5847 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5832 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5830 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5837 …2} "content" => Illuminate\Database\Eloquent\Collection {#5838 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5818 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 8 => App\Models\Task {#5805 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367516 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-4-3" "field_display_title" => "3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5834 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5817 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5815 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5819 …2} "content" => Illuminate\Database\Eloquent\Collection {#5821 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5804 …2} "page" => array:2 [ …2] ] #original: array:24 [ "id" => 1367516 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/33-4-3" "field_display_title" => "3" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#5834 …2} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#5817 …2} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5815 …2} "parent_branches" => Illuminate\Database\Eloquent\Collection {#5819 …2} "content" => Illuminate\Database\Eloquent\Collection {#5821 …2} "next" => array:2 [ …2] "previous" => array:2 [ …2] "book" => Illuminate\Database\Eloquent\Collection {#5804 …2} "page" => array:2 [ …2] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } ] #original: array:21 [ "id" => 1368111 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "113" "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/page-113" "field_display_title" => "113" "field_folder" => "1" "field_image_name" => "113" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5637} "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5638} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#5639} "content" => Illuminate\Database\Eloquent\Collection {#5649} "next" => array:2 [ "refs" => "1368112" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1368110" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#5640} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "tasks" => Illuminate\Database\Eloquent\Collection {#1056 #items: array:1 [ 0 => App\Models\Task {#1054 #connection: "mysql" #table: "tasks" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:24 [ "id" => 1367517 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "114" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/34-1-1" "field_display_title" => "Вопросы в начале параграфа" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1057 #items: [] #escapeWhenCastingToString: false } "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1058 #items: [] #escapeWhenCastingToString: false } "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1068 #items: array:1 [ 0 => App\Models\Branch {#1067 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:23 [ "id" => 1367193 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Вода. Растворы" "field_branch_order" => "4" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1072 …2} "field_page_start" => "103" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1071 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1070 …2} ] #original: array:23 [ "id" => 1367193 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Вода. Растворы" "field_branch_order" => "4" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1072 …2} "field_page_start" => "103" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1071 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1070 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "parent_branches" => Illuminate\Database\Eloquent\Collection {#1100 #items: array:3 [ 0 => App\Models\Branch {#1110 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:23 [ "id" => 1367193 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Вода. Растворы" "field_branch_order" => "4" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1111 …2} "field_page_start" => "103" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1112 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1113 …2} ] #original: array:23 [ "id" => 1367193 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Вода. Растворы" "field_branch_order" => "4" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1111 …2} "field_page_start" => "103" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1112 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1113 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 1 => App\Models\Branch {#1114 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:23 [ "id" => 1367202 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Массовая доля растворенного вещества" "field_branch_order" => "34" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1118 …2} "field_page_start" => "114" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1117 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1116 …2} ] #original: array:23 [ "id" => 1367202 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Массовая доля растворенного вещества" "field_branch_order" => "34" "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1118 …2} "field_page_start" => "114" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1117 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1116 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 2 => App\Models\Branch {#1119 #connection: "mysql" #table: "branches" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:23 [ "id" => 1367203 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Подумай, ответь, выполни..." "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1120 …2} "field_page_start" => "114" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1121 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1130 …2} ] #original: array:23 [ "id" => 1367203 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_display_title" => "Подумай, ответь, выполни..." "field_branch_order" => null "field_url" => null "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1120 …2} "field_page_start" => "114" "field_branch_display" => "0" "field_branch_expanded" => "0" "field_display_branch_in_title" => "1" "field_display_task_interval" => "0" "field_display_branch_page" => "1" "field_branch_title_in_content" => "0" "field_navigation_title" => null "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_branch_cover" => [] "book" => Illuminate\Database\Eloquent\Collection {#1121 …2} "branch_parent" => Illuminate\Database\Eloquent\Collection {#1130 …2} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "content" => Illuminate\Database\Eloquent\Collection {#1098 #items: array:3 [ 0 => App\Models\Element {#1092 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:7 [ "id" => 1579916 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1089 …2} "task" => array:2 [ …2] "text" => "<p>🔴 <strong>Что называют массовой долей элемента в соединении? Как её вычисляют?</strong></p>" "img" => array:1 [ …1] ] #original: array:7 [ "id" => 1579916 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1089 …2} "task" => array:2 [ …2] "text" => "<p>🔴 <strong>Что называют массовой долей элемента в соединении? Как её вычисляют?</strong></p>" "img" => array:1 [ …1] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 1 => App\Models\Element {#1090 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1580003 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1081 …2} "task" => array:2 [ …2] "img" => array:1 [ …1] ] #original: array:6 [ "id" => 1580003 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1081 …2} "task" => array:2 [ …2] "img" => array:1 [ …1] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } 2 => App\Models\Element {#1083 #connection: "mysql" #table: "elements" #primaryKey: "id" #keyType: "int" +incrementing: true #with: [] #withCount: [] +preventsLazyLoading: false #perPage: 15 +exists: true +wasRecentlyCreated: false #escapeWhenCastingToString: false #attributes: array:6 [ "id" => 1740236 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1065 …2} "task" => array:2 [ …2] "text" => "<p><strong>Что называют массовой долей элемента в соединении?</strong></p><p>Массовой долей элемента в химическом соединении называют отношение массы всех атомов этого элемента, входящих в состав соединения, к общей массе всего соединения. Эта величина показывает, какую часть от общей массы вещества составляет данный элемент.</p><p>Массовая доля обозначается греческой буквой омега ($\text{w}$). Это безразмерная величина, которую принято выражать в долях от единицы (например, 0,15) или в процентах (например, 15%).</p><p><strong>Ответ:</strong> Массовая доля элемента в соединении — это отношение массы данного элемента в соединении к массе всего соединения.</p><p><strong>Как её вычисляют?</strong></p><p>Массовую долю элемента в веществе ($w(Э)$) можно вычислить, зная химическую формулу этого вещества. Расчёт производится по следующей формуле:</p><p>$w(Э) = \frac{n \cdot Ar(Э)}{Mr(вещества)}$</p><p>Чтобы выразить результат в процентах, полученное значение необходимо умножить на 100%:</p><p>$w(Э)\% = \frac{n \cdot Ar(Э)}{Mr(вещества)} \cdot 100\%$</p><p>В этих формулах используются следующие обозначения:<br> $\text{n}$ — число атомов данного элемента в одной формульной единице вещества (индекс в химической формуле);<br> $Ar(Э)$ — относительная атомная масса элемента (её значение берут из Периодической системы химических элементов Д.И. Менделеева);<br> $Mr(вещества)$ — относительная молекулярная (или формульная) масса всего соединения, которая равна сумме относительных атомных масс всех атомов, входящих в его состав, с учётом их количества.</p><p><strong>Ответ:</strong> Массовую долю элемента вычисляют по формуле $w(Э) = \frac{n \cdot Ar(Э)}{Mr(вещества)}$, где $\text{n}$ — число атомов элемента в формуле, $Ar(Э)$ — его относительная атомная масса, а $Mr(вещества)$ — относительная молекулярная масса всего соединения.</p>" ] #original: array:6 [ "id" => 1740236 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "edition" => Illuminate\Database\Eloquent\Collection {#1065 …2} "task" => array:2 [ …2] "text" => "<p><strong>Что называют массовой долей элемента в соединении?</strong></p><p>Массовой долей элемента в химическом соединении называют отношение массы всех атомов этого элемента, входящих в состав соединения, к общей массе всего соединения. Эта величина показывает, какую часть от общей массы вещества составляет данный элемент.</p><p>Массовая доля обозначается греческой буквой омега ($\text{w}$). Это безразмерная величина, которую принято выражать в долях от единицы (например, 0,15) или в процентах (например, 15%).</p><p><strong>Ответ:</strong> Массовая доля элемента в соединении — это отношение массы данного элемента в соединении к массе всего соединения.</p><p><strong>Как её вычисляют?</strong></p><p>Массовую долю элемента в веществе ($w(Э)$) можно вычислить, зная химическую формулу этого вещества. Расчёт производится по следующей формуле:</p><p>$w(Э) = \frac{n \cdot Ar(Э)}{Mr(вещества)}$</p><p>Чтобы выразить результат в процентах, полученное значение необходимо умножить на 100%:</p><p>$w(Э)\% = \frac{n \cdot Ar(Э)}{Mr(вещества)} \cdot 100\%$</p><p>В этих формулах используются следующие обозначения:<br> $\text{n}$ — число атомов данного элемента в одной формульной единице вещества (индекс в химической формуле);<br> $Ar(Э)$ — относительная атомная масса элемента (её значение берут из Периодической системы химических элементов Д.И. Менделеева);<br> $Mr(вещества)$ — относительная молекулярная (или формульная) масса всего соединения, которая равна сумме относительных атомных масс всех атомов, входящих в его состав, с учётом их количества.</p><p><strong>Ответ:</strong> Массовую долю элемента вычисляют по формуле $w(Э) = \frac{n \cdot Ar(Э)}{Mr(вещества)}$, где $\text{n}$ — число атомов элемента в формуле, $Ar(Э)$ — его относительная атомная масса, а $Mr(вещества)$ — относительная молекулярная масса всего соединения.</p>" ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } "next" => array:2 [ "refs" => "1367518" "type" => "task" ] "previous" => array:2 [ "refs" => "1367516" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#1094 #items: array:1 [ 0 => App\Models\Book {#1006} ] #escapeWhenCastingToString: false } "page" => array:2 [ "refs" => "1368112" "type" => "book_page" ] ] #original: array:24 [ "id" => 1367517 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "114" "field_page_end" => null "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/34-1-1" "field_display_title" => "Вопросы в начале параграфа" "field_outside_task" => null "field_task_type" => Illuminate\Database\Eloquent\Collection {#1057} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "field_match" => null "breadcrumbs" => [] "edition_groups" => Illuminate\Database\Eloquent\Collection {#1058} "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#1068} "parent_branches" => Illuminate\Database\Eloquent\Collection {#1100} "content" => Illuminate\Database\Eloquent\Collection {#1098} "next" => array:2 [ "refs" => "1367518" "type" => "task" ] "previous" => array:2 [ "refs" => "1367516" "type" => "task" ] "book" => Illuminate\Database\Eloquent\Collection {#1094} "page" => array:2 [ "refs" => "1368112" "type" => "book_page" ] ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] } ] #escapeWhenCastingToString: false } ] #original: array:21 [ "id" => 1368112 "created_at" => "2026-04-10 00:54:11" "updated_at" => null "field_page_start" => "114" "field_url" => "/8-klass/himiya/rudzitis-uchebnik-2019/page-114" "field_display_title" => "114" "field_folder" => "1" "field_image_name" => "114" "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008} "field_weight" => "0" "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1037} "field_metatags_title" => null "field_metatags_description" => null "field_h1" => null "field_description_top" => null "field_description_bottom" => null "edition_groups" => Illuminate\Database\Eloquent\Collection {#1035} "content" => Illuminate\Database\Eloquent\Collection {#1046} "next" => array:2 [ "refs" => "1368114" "type" => "book_page" ] "previous" => array:2 [ "refs" => "1368111" "type" => "book_page" ] "tasks" => Illuminate\Database\Eloquent\Collection {#1056} ] #changes: [] #casts: [] #classCastCache: [] #attributeCastCache: [] #dateFormat: null #appends: [] #dispatchesEvents: [] #observables: [] #relations: [] #touches: [] +timestamps: true +usesUniqueIds: false #hidden: [] #visible: [] #fillable: [] #guarded: array:1 [ 0 => "*" ] }
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