Страница 21 - гдз по химии 9 класс учебник Усманова, Сакарьянова

Химия, 9 класс Учебник, авторы: Усманова Майкамал Бигалиевна, Сакарьянова Куралай Назымовна, Сахариева Балнур Назымовна, издательство Атамұра, Алматы, 2019, голубого цвета

Авторы: Усманова М. Б., Сакарьянова К. Н., Сахариева Б. Н.

Тип: Учебник

Издательство: Атамұра

Год издания: 2019 - 2026

Цвет обложки: голубой

ISBN: 978-601-331-596-6

Cтраница 21

App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php
  #connection: "mysql"
  #table: "book_pages"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
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  #withCount: []
  +preventsLazyLoading: false
  #perPage: 15
  +exists: true
  +wasRecentlyCreated: false
  #escapeWhenCastingToString: false
  #attributes: array:21 [
    "id" => 2106419
    "created_at" => "2026-04-10 13:58:26"
    "updated_at" => null
    "field_page_start" => "21"
    "field_url" => "/9-klass/himiya/atamura-usmanova-uchebnik/page-21"
    "field_display_title" => "21"
    "field_folder" => "1"
    "field_image_name" => "21"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008
      #items: []
      #escapeWhenCastingToString: false
    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1016
      #items: array:1 [
        0 => App\Models\Book {#1015
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: false
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
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          #attributes: array:50 [
            "id" => 9901
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1020
              #items: array:1 [
                0 => App\Models\Term {#1017
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                  #attributes: array:10 [
                    "id" => 6495
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Химия"
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                      "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 13:58:26"
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                    0 => "*"
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                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_author" => Illuminate\Database\Eloquent\Collection {#1025
              #items: array:3 [
                0 => App\Models\Term {#1034
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Усманова"
                    "field_bio" => null
                    "field_degree_rp" => null
                    "field_foreign_lang_name" => null
                    "field_foreign_lang_patronymic" => null
                    "field_foreign_lang_surname" => null
                    "field_name" => "Майкамал"
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                  ]
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_surname_rp" => null
                  ]
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                2 => App\Models\Term {#1036
                  #connection: "mysql"
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              #escapeWhenCastingToString: false
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                  ]
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            }
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1043
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/9-klass/himiya/atamura-usmanova-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1047
              #items: array:1 [
                0 => App\Models\Term {#1044
                  #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" => 52
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "голубой"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "голубой"
                      "field_creative_case" => "голубым"
                      "field_dative_case" => "голубому"
                      "field_genitive_case" => "голубого"
                      "field_nominative_case" => "голубой"
                      "field_prepositional_case" => "голубом"
                    ]
                    "field_translit" => "goluboy"
                  ]
                  #original: array:6 [
                    "id" => 52
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "голубой"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "голубой"
                      "field_creative_case" => "голубым"
                      "field_dative_case" => "голубому"
                      "field_genitive_case" => "голубого"
                      "field_nominative_case" => "голубой"
                      "field_prepositional_case" => "голубом"
                    ]
                    "field_translit" => "goluboy"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #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
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            "field_description_bottom" => null
            "breadcrumbs" => array:3 [
              "class" => 380
              "subject" => 558
              "class_subject" => 499
            ]
          ]
          #original: array:50 [
            "id" => 9901
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_tree_default_status" => "tasks"
            "field_pages_status" => null
            "field_subject" => Illuminate\Database\Eloquent\Collection {#1020}
            "field_class" => Illuminate\Database\Eloquent\Collection {#1022}
            "field_publisher" => Illuminate\Database\Eloquent\Collection {#1024}
            "field_author" => Illuminate\Database\Eloquent\Collection {#1025}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1031}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1032}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1026}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1027}
            "field_series" => Illuminate\Database\Eloquent\Collection {#1029}
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1023}
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1037}
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1038}
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1039}
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1040}
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2019"
            "field_publication_year_until" => null
            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебник для 9 класса общеобразовательных школ"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "279"
            "field_priority" => null
            "field_default_folder" => "/himiya_09/usmanova-u/"
            "field_isbn" => "978-601-331-596-6"
            "field_cover" => array:1 [
              0 => "/media/himiya_09/usmanova-u/covers/cover1.webp?ts=1770205188"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/himiya_09/usmanova-u/covers/cover1.webp?ts=1770205188"
                "alt" => ""
                "width" => "400"
                "height" => "600"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1041}
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1042}
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1043}
            "field_url" => "/9-klass/himiya/atamura-usmanova-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1047}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "breadcrumbs" => array:3 [
              "class" => 380
              "subject" => 558
              "class_subject" => 499
            ]
          ]
          #changes: []
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          #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 {#1007
      #items: []
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1049
      #items: array:1 [
        0 => App\Models\Element {#1048
          #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" => 1995158
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1058
              #items: array:1 [
                0 => App\Models\Edition {#1050
                  #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" => 9445
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1052
                      #items: array:1 [
                        0 => App\Models\Term {#1051
                          #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 [ …6]
                          #original: array:6 [ …6]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [ …1]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => "0"
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "stas"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1053
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1054
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1055
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_content_source" => null
                  ]
                  #original: array:21 [
                    "id" => 9445
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1052}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => "0"
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "stas"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1053}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1054}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1055}
                    "field_content_source" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "book_page" => array:2 [
              "refs" => "2106419"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "21-1.jpg"
                "alt" => null
                "width" => "816"
                "height" => 1114
                "path" => "/media/himiya_09/usmanova-u/0-1/21-1.webp?ts=1770671627"
              ]
            ]
          ]
          #original: array:6 [
            "id" => 1995158
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1058}
            "book_page" => array:2 [
              "refs" => "2106419"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "21-1.jpg"
                "alt" => null
                "width" => "816"
                "height" => 1114
                "path" => "/media/himiya_09/usmanova-u/0-1/21-1.webp?ts=1770671627"
              ]
            ]
          ]
          #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 {#5631
      #items: array:1 [
        0 => App\Models\BookPage {#5632
          #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" => 2106420
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_page_start" => "22"
            "field_url" => "/9-klass/himiya/atamura-usmanova-uchebnik/page-22"
            "field_display_title" => "22"
            "field_folder" => "1"
            "field_image_name" => "22"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5641
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5643
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #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 {#5636
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#5682
              #items: array:1 [
                0 => App\Models\Element {#5675
                  #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" => 1995159
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5683
                      #items: array:1 [
                        0 => App\Models\Edition {#1050}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "book_page" => array:2 [
                      "refs" => "2106420"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "22-1.jpg"
                        "alt" => null
                        "width" => "816"
                        "height" => 1114
                        "path" => "/media/himiya_09/usmanova-u/0-1/22-1.webp?ts=1770671627"
                      ]
                    ]
                  ]
                  #original: array:6 [
                    "id" => 1995159
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5683}
                    "book_page" => array:2 [
                      "refs" => "2106420"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "22-1.jpg"
                        "alt" => null
                        "width" => "816"
                        "height" => 1114
                        "path" => "/media/himiya_09/usmanova-u/0-1/22-1.webp?ts=1770671627"
                      ]
                    ]
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
              "refs" => "2106421"
              "type" => "book_page"
            ]
            "previous" => array:2 [
              "refs" => "2106419"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5686
              #items: array:1 [
                0 => App\Models\Task {#5685
                  #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" => 2107655
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_page_start" => "22"
                    "field_page_end" => null
                    "field_url" => "/9-klass/himiya/atamura-usmanova-uchebnik/04vspom-1"
                    "field_display_title" => "Вспомните!"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5687
                      #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 {#5688
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5689
                      #items: array:1 [
                        0 => App\Models\Branch {#1141
                          #connection: "mysql"
                          #table: "branches"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: true
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:24 [
                            "id" => 2107540
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "field_display_title" => "Электролитическая диссоциация"
                            "field_branch_order" => "1"
                            "field_url" => null
                            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1145
                              #items: array:1 [
                                0 => App\Models\Term {#1142
                                  #connection: "mysql"
                                  #table: "terms"
                                  #primaryKey: "id"
                                  #keyType: "int"
                                  +incrementing: false
                                  #with: []
                                  #withCount: []
                                  +preventsLazyLoading: false
                                  #perPage: 15
                                  +exists: true
                                  +wasRecentlyCreated: false
                                  #escapeWhenCastingToString: false
                                  #attributes: array:7 [ …7]
                                  #original: array:7 [ …7]
                                  #changes: []
                                  #casts: []
                                  #classCastCache: []
                                  #attributeCastCache: []
                                  #dateFormat: null
                                  #appends: []
                                  #dispatchesEvents: []
                                  #observables: []
                                  #relations: []
                                  #touches: []
                                  +timestamps: true
                                  +usesUniqueIds: false
                                  #hidden: []
                                  #visible: []
                                  #fillable: []
                                  #guarded: array:1 [ …1]
                                }
                              ]
                              #escapeWhenCastingToString: false
                            }
                            "field_page_start" => "9"
                            "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" => []
                            "field_branch_covers" => []
                            "book" => Illuminate\Database\Eloquent\Collection {#1144
                              #items: array:1 [
                                0 => App\Models\Book {#1015}
                              ]
                              #escapeWhenCastingToString: false
                            }
                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1143
                              #items: []
                              #escapeWhenCastingToString: false
                            }
                          ]
                          #original: array:24 [
                            "id" => 2107540
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "field_display_title" => "Электролитическая диссоциация"
                            "field_branch_order" => "1"
                            "field_url" => null
                            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1145}
                            "field_page_start" => "9"
                            "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" => []
                            "field_branch_covers" => []
                            "book" => Illuminate\Database\Eloquent\Collection {#1144}
                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1143}
                          ]
                          #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 {#5726
                      #items: array:2 [
                        0 => App\Models\Branch {#5734
                          #connection: "mysql"
                          #table: "branches"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: true
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:24 [ …24]
                          #original: array:24 [ …24]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [ …1]
                        }
                        1 => App\Models\Branch {#5738
                          #connection: "mysql"
                          #table: "branches"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: true
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:24 [ …24]
                          #original: array:24 [ …24]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
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                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [ …1]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#5718
                      #items: array:1 [
                        0 => App\Models\Element {#5719
                          #connection: "mysql"
                          #table: "elements"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: true
                          #with: []
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                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [ …6]
                          #original: array:6 [ …6]
                          #changes: []
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                          #dateFormat: null
                          #appends: []
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                          #relations: []
                          #touches: []
                          +timestamps: true
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                          #hidden: []
                          #visible: []
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                          #guarded: array:1 [ …1]
                        }
                      ]
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                    }
                    "next" => array:2 [
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                    ]
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                      "type" => "task"
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                    "book" => Illuminate\Database\Eloquent\Collection {#5690
                      #items: array:1 [
                        0 => App\Models\Book {#1015}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "page" => array:2 [
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                      "type" => "book_page"
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                    "field_url" => "/9-klass/himiya/atamura-usmanova-uchebnik/04vspom-1"
                    "field_display_title" => "Вспомните!"
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                    "book" => Illuminate\Database\Eloquent\Collection {#5690}
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                      "type" => "book_page"
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                    0 => "*"
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            "field_display_title" => "22"
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            "field_image_name" => "22"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5641}
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5643}
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            "edition_groups" => Illuminate\Database\Eloquent\Collection {#5636}
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            "previous" => array:2 [
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    "previous" => Illuminate\Database\Eloquent\Collection {#5626
      #items: array:1 [
        0 => App\Models\BookPage {#5625
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          +incrementing: true
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            }
            "field_weight" => "0"
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            "content" => Illuminate\Database\Eloquent\Collection {#5639
              #items: array:1 [
                0 => App\Models\Element {#5638
                  #connection: "mysql"
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                  #primaryKey: "id"
                  #keyType: "int"
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                  #attributes: array:6 [
                    "id" => 1995157
                    "created_at" => "2026-04-10 13:58:26"
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                    }
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                        "path" => "/media/himiya_09/usmanova-u/0-1/20-1.webp?ts=1770671627"
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                  ]
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                    "created_at" => "2026-04-10 13:58:26"
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                    ]
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            "tasks" => Illuminate\Database\Eloquent\Collection {#5630
              #items: array:3 [
                0 => App\Models\Task {#5645
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                    "created_at" => "2026-04-10 13:58:26"
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                    "field_display_title" => "A"
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                        0 => App\Models\Term {#5646
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                          #keyType: "int"
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                          #attributes: array:6 [ …6]
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                    }
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5647
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                      ]
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                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5650
                      #items: array:2 [
                        0 => App\Models\Branch {#1141}
                        1 => App\Models\Branch {#1146
                          #connection: "mysql"
                          #table: "branches"
                          #primaryKey: "id"
                          #keyType: "int"
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                          #with: []
                          #withCount: []
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                            "created_at" => "2026-04-10 13:58:26"
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                            "field_url" => null
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                                  #connection: "mysql"
                                  #table: "terms"
                                  #primaryKey: "id"
                                  #keyType: "int"
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                                  #attributes: array:7 [ …7]
                                  #original: array:7 [ …7]
                                  #changes: []
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                                   …14
                                }
                              ]
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                            "field_page_start" => "16"
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                            "field_display_task_interval" => "0"
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                            "field_navigation_title" => null
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                            "field_branch_covers" => []
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                                0 => App\Models\Book {#1015}
                              ]
                              #escapeWhenCastingToString: false
                            }
                            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1148
                              #items: array:1 [
                                0 => App\Models\Branch {#1062
                                  #connection: "mysql"
                                  #table: "branches"
                                  #primaryKey: "id"
                                  #keyType: "int"
                                  +incrementing: true
                                  #with: []
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                                    "field_branch_order" => "1"
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                                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1064
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                                        0 => App\Models\Term {#1063 …30}
                                      ]
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                                    }
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                                    "book" => Illuminate\Database\Eloquent\Collection {#1065
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                                        0 => App\Models\Book {#1066 …30}
                                      ]
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                                    }
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                                  ]
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                                    "book" => Illuminate\Database\Eloquent\Collection {#1065}
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                          #touches: []
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                      ]
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                    "content" => Illuminate\Database\Eloquent\Collection {#5660
                      #items: array:1 [
                        0 => App\Models\Element {#5659
                          #connection: "mysql"
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                          #keyType: "int"
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                          +exists: true
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                          #escapeWhenCastingToString: false
                          #attributes: array:6 [ …6]
                          #original: array:6 [ …6]
                          #changes: []
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                          #touches: []
                          +timestamps: true
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                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [ …1]
                        }
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                    }
                    "next" => array:2 [
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                    "book" => Illuminate\Database\Eloquent\Collection {#5652
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                        0 => App\Models\Book {#1015}
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                      #escapeWhenCastingToString: false
                    }
                    "page" => array:2 [
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                  ]
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                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
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Химия, 9 класс Учебник, авторы: Усманова Майкамал Бигалиевна, Сакарьянова Куралай Назымовна, Сахариева Балнур Назымовна, издательство Атамұра, Алматы, 2019, голубого цвета, страница 21
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