Страница 39 - гдз по химии 8 класс учебник Оспанова, Аухадиева

Химия, 8 класс Учебник, авторы: Оспанова Мейрамкуль Кабылбековна, Аухадиева Кырмызы Сейсенбековна, Белоусова Татьяна Геннадьевна, издательство Мектеп, Алматы, 2018, радужного цвета

Авторы: Оспанова М. К., Аухадиева К. С., Белоусова Т. Г.

Тип: Учебник

Издательство: Мектеп

Год издания: 2018 - 2026

Цвет обложки: радужный

ISBN: 978-601-07-0958-4

Cтраница 39

App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php
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    "id" => 2112211
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    "updated_at" => null
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    "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik/page-39"
    "field_display_title" => "39"
    "field_folder" => "1"
    "field_image_name" => "39"
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    }
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1016
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        0 => App\Models\Book {#1015
          #connection: "mysql"
          #table: "books"
          #primaryKey: "id"
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            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1042
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1046
              #items: array:1 [
                0 => App\Models\Term {#1043
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
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                  #attributes: array:6 [
                    "id" => 55
                    "created_at" => "2026-04-08 17:28:58"
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                    "field_cases" => array:6 [
                      "field_accusative_case" => "радужный"
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                      "field_nominative_case" => "радужный"
                      "field_prepositional_case" => "радужном"
                    ]
                    "field_translit" => "raduzhnyy"
                  ]
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                    "id" => 55
                    "created_at" => "2026-04-08 17:28:58"
                    "updated_at" => null
                    "name" => "радужный"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "радужный"
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                      "field_dative_case" => "радужному"
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                      "field_nominative_case" => "радужный"
                      "field_prepositional_case" => "радужном"
                    ]
                    "field_translit" => "raduzhnyy"
                  ]
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              "subject" => 558
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            ]
          ]
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            "id" => 9895
            "created_at" => "2026-04-08 17:28:58"
            "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 {#1027}
            "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1028}
            "field_book_type" => Illuminate\Database\Eloquent\Collection {#1031}
            "field_country" => Illuminate\Database\Eloquent\Collection {#1033}
            "field_city" => Illuminate\Database\Eloquent\Collection {#1035}
            "field_series" => Illuminate\Database\Eloquent\Collection {#1034}
            "field_umk" => Illuminate\Database\Eloquent\Collection {#1029}
            "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1036}
            "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1037}
            "field_publication_number" => null
            "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1038}
            "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1039}
            "field_under_the_edition_degree" => null
            "field_cover_description" => null
            "field_publication_year" => "2018"
            "field_publication_year_until" => null
            "field_part" => ""
            "field_part_writing" => ""
            "field_second_foreign_language" => null
            "field_for_whom" => "Учебник для 8 класса общеобразовательных школ"
            "field_allowed" => null
            "field_reserve_field" => null
            "field_link_to_source" => null
            "field_tasks_count" => "487"
            "field_priority" => null
            "field_default_folder" => "/himiya_08/ospanova-u/"
            "field_isbn" => "978-601-07-0958-4"
            "field_cover" => array:1 [
              0 => "/media/himiya_08/ospanova-u/covers/cover1.webp"
            ]
            "field_cover_alts" => array:1 [
              0 => ""
            ]
            "field_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/himiya_08/ospanova-u/covers/cover1.webp"
                "alt" => ""
                "width" => "400"
                "height" => "600"
              ]
            ]
            "field_popular_book" => "0"
            "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1040}
            "field_new_book" => Illuminate\Database\Eloquent\Collection {#1041}
            "field_old_book" => Illuminate\Database\Eloquent\Collection {#1042}
            "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik"
            "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1046}
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "breadcrumbs" => array:3 [
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            ]
          ]
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
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      #escapeWhenCastingToString: false
    }
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        0 => App\Models\Element {#1047
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            "edition" => Illuminate\Database\Eloquent\Collection {#1057
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                0 => App\Models\Edition {#1049
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                  #primaryKey: "id"
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                    "id" => 9447
                    "created_at" => "2026-04-08 17:28:58"
                    "updated_at" => null
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                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1051
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                        0 => App\Models\Term {#1050
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
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                          #with: []
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                          #attributes: array:6 [ …6]
                          #original: array:6 [ …6]
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                          #dateFormat: null
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                          #visible: []
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                          #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 {#1052
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                    }
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1053
                      #items: []
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                    }
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1054
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_content_source" => null
                  ]
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                    "created_at" => "2026-04-08 17:28:58"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1051}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
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                    "field_content_text_checked" => "0"
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                    "field_solution_author" => "Автор"
                    "field_moderator" => "stas"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1052}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1053}
                    "field_process_formula" => ""
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1054}
                    "field_content_source" => null
                  ]
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "book_page" => array:2 [
              "refs" => "2112211"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "39-1.jpg"
                "alt" => null
                "width" => "677"
                "height" => 1013
                "path" => "/media/himiya_08/ospanova-u/0-1/39-1.webp"
              ]
            ]
          ]
          #original: array:6 [
            "id" => 1994016
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1057}
            "book_page" => array:2 [
              "refs" => "2112211"
              "type" => "book_page"
            ]
            "img" => array:1 [
              0 => array:5 [
                "name" => "39-1.jpg"
                "alt" => null
                "width" => "677"
                "height" => 1013
                "path" => "/media/himiya_08/ospanova-u/0-1/39-1.webp"
              ]
            ]
          ]
          #changes: []
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "next" => Illuminate\Database\Eloquent\Collection {#5595
      #items: array:1 [
        0 => App\Models\BookPage {#5590
          #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" => 2112212
            "created_at" => "2026-04-08 17:28:58"
            "updated_at" => null
            "field_page_start" => "40"
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            "field_display_title" => "40"
            "field_folder" => "1"
            "field_image_name" => "40"
            "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#5593
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_weight" => "0"
            "field_book_parent" => Illuminate\Database\Eloquent\Collection {#5596
              #items: array:1 [
                0 => App\Models\Book {#1015}
              ]
              #escapeWhenCastingToString: false
            }
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
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            "field_description_bottom" => null
            "edition_groups" => Illuminate\Database\Eloquent\Collection {#5594
              #items: []
              #escapeWhenCastingToString: false
            }
            "content" => Illuminate\Database\Eloquent\Collection {#5610
              #items: array:1 [
                0 => App\Models\Element {#5609
                  #connection: "mysql"
                  #table: "elements"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #perPage: 15
                  +exists: true
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                  #escapeWhenCastingToString: false
                  #attributes: array:6 [
                    "id" => 1994017
                    "created_at" => "2026-04-08 17:28:58"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5611
                      #items: array:1 [
                        0 => App\Models\Edition {#1049}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "book_page" => array:2 [
                      "refs" => "2112212"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [
                        "name" => "40-1.jpg"
                        "alt" => null
                        "width" => "691"
                        "height" => 1015
                        "path" => "/media/himiya_08/ospanova-u/0-1/40-1.webp"
                      ]
                    ]
                  ]
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                    "created_at" => "2026-04-08 17:28:58"
                    "updated_at" => null
                    "edition" => Illuminate\Database\Eloquent\Collection {#5611}
                    "book_page" => array:2 [
                      "refs" => "2112212"
                      "type" => "book_page"
                    ]
                    "img" => array:1 [
                      0 => array:5 [
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                        "width" => "691"
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                      ]
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "next" => array:2 [
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              "type" => "book_page"
            ]
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              "refs" => "2112211"
              "type" => "book_page"
            ]
            "tasks" => Illuminate\Database\Eloquent\Collection {#5601
              #items: array:9 [
                0 => App\Models\Task {#5622
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 2111749
                    "created_at" => "2026-04-08 17:28:58"
                    "updated_at" => null
                    "field_page_start" => "40"
                    "field_page_end" => null
                    "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik/10vopr-1"
                    "field_display_title" => "1"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5626
                      #items: array:1 [
                        0 => App\Models\Term {#5623
                          #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: []
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                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
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                          #relations: []
                          #touches: []
                          +timestamps: true
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                          #hidden: []
                          #visible: []
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                          #guarded: array:1 [ …1]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "field_description_bottom" => null
                    "field_match" => null
                    "breadcrumbs" => []
                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#5625
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5635
                      #items: array:1 [
                        0 => App\Models\Branch {#5634
                          #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 [ …23]
                          #original: array:23 [ …23]
                          #changes: []
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                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
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                          #relations: []
                          #touches: []
                          +timestamps: true
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                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [ …1]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5669
                      #items: array:2 [
                        0 => App\Models\Branch {#5677
                          #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 [ …23]
                          #original: array:23 [ …23]
                          #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]
                        }
                        1 => App\Models\Branch {#5681
                          #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 [ …23]
                          #original: array:23 [ …23]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [ …1]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#5661
                      #items: array:1 [
                        0 => App\Models\Element {#5662
                          #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 [ …6]
                          #original: array:6 [ …6]
                          #changes: []
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                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [ …1]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
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                    "book" => Illuminate\Database\Eloquent\Collection {#5627
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                    0 => "*"
                  ]
                }
                1 => App\Models\Task {#5666
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5665
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                        0 => App\Models\Branch {#5677}
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                    "content" => Illuminate\Database\Eloquent\Collection {#5652
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                        0 => App\Models\Element {#5651
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                          #attributes: array:6 [ …6]
                          #original: array:6 [ …6]
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                          +timestamps: true
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                          #guarded: array:1 [ …1]
                        }
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                    "book" => Illuminate\Database\Eloquent\Collection {#5659
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                        0 => App\Models\Book {#1015}
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5674}
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                    0 => "*"
                  ]
                }
                2 => App\Models\Task {#5658
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  #attributes: array:24 [
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                    "created_at" => "2026-04-08 17:28:58"
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                    "field_display_title" => "3"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5629
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                        0 => App\Models\Branch {#5677}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5653
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                        1 => App\Models\Branch {#5681}
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                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#5640
                      #items: array:1 [
                        0 => App\Models\Element {#5643
                          #connection: "mysql"
                          #table: "elements"
                          #primaryKey: "id"
                          #keyType: "int"
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                          #with: []
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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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                           …12
                        }
                      ]
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                    }
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                    "book" => Illuminate\Database\Eloquent\Collection {#5650
                      #items: array:1 [
                        0 => App\Models\Book {#1015}
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                    "page" => array:2 [
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                    "field_page_end" => null
                    "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik/10vopr-3"
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5653}
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                    0 => "*"
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                }
                3 => App\Models\Task {#5648
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
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                  #attributes: array:24 [
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                    "field_display_title" => "4"
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                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5644
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                        0 => App\Models\Branch {#5677}
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                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5645
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                        0 => App\Models\Branch {#5677}
                        1 => App\Models\Branch {#5681}
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                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#5670
                      #items: array:1 [
                        0 => App\Models\Element {#5672 …30}
                      ]
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                    }
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                    "book" => Illuminate\Database\Eloquent\Collection {#5632
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                      ]
                      #escapeWhenCastingToString: false
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                    "page" => array:2 [
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                  ]
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                    "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik/10vopr-4"
                    "field_display_title" => "4"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5656}
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                    0 => "*"
                  ]
                }
                4 => App\Models\Task {#5630
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
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                  #attributes: array:24 [
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                    "field_display_title" => "5"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5647
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                        0 => App\Models\Term {#5623}
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                    "edition_groups" => Illuminate\Database\Eloquent\Collection {#5668
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                    }
                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5624
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                        0 => App\Models\Branch {#5677}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5667
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                        0 => App\Models\Branch {#5677}
                        1 => App\Models\Branch {#5681}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#5693
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                        0 => App\Models\Element {#5692 …30}
                      ]
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                    }
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                    "book" => Illuminate\Database\Eloquent\Collection {#5671
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                        0 => App\Models\Book {#1015}
                      ]
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                    }
                    "page" => array:2 [
                      "refs" => "2112212"
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                    ]
                  ]
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                    "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik/10vopr-5"
                    "field_display_title" => "5"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5647}
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5667}
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                    0 => "*"
                  ]
                }
                5 => App\Models\Task {#5686
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
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                  #attributes: array:24 [
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                    "created_at" => "2026-04-08 17:28:58"
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                    "field_url" => "/8-klass/himiya/mektep-ospanova-uchebnik/10vopr-6"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5628
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                        0 => App\Models\Term {#5623}
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                        0 => App\Models\Branch {#5677}
                      ]
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                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5690
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                        0 => App\Models\Branch {#5677}
                        1 => App\Models\Branch {#5681}
                      ]
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                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#5703
                      #items: array:1 [
                        0 => App\Models\Element {#5702 …30}
                      ]
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                    }
                    "next" => array:2 [
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                    "book" => Illuminate\Database\Eloquent\Collection {#5695
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                        0 => App\Models\Book {#1015}
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                      #escapeWhenCastingToString: false
                    }
                    "page" => array:2 [
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                      "type" => "book_page"
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                    "id" => 2111754
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                    "field_display_title" => "6"
                    "field_outside_task" => null
                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5628}
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                    0 => "*"
                  ]
                }
                6 => App\Models\Task {#5696
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
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                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5697
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                        0 => App\Models\Branch {#5677}
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                      #escapeWhenCastingToString: false
                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5700
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                        0 => App\Models\Branch {#5677}
                        1 => App\Models\Branch {#5681}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "content" => Illuminate\Database\Eloquent\Collection {#5713
                      #items: array:1 [
                        0 => App\Models\Element {#5712 …30}
                      ]
                      #escapeWhenCastingToString: false
                    }
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                    "book" => Illuminate\Database\Eloquent\Collection {#5705
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                        0 => App\Models\Book {#1015}
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                    0 => "*"
                  ]
                }
                7 => App\Models\Task {#5706
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
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                  #withCount: []
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                  #attributes: array:24 [
                    "id" => 2111756
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                    "field_display_title" => "8"
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                    "field_task_type" => Illuminate\Database\Eloquent\Collection {#5698
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                        0 => App\Models\Term {#5623}
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                    "top_parent_branch" => Illuminate\Database\Eloquent\Collection {#5707
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                        0 => App\Models\Branch {#5677}
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                      #escapeWhenCastingToString: false
                    }
                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5710
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                        0 => App\Models\Branch {#5677}
                        1 => App\Models\Branch {#5681}
                      ]
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                    "content" => Illuminate\Database\Eloquent\Collection {#5723
                      #items: array:1 [
                        0 => App\Models\Element {#5722 …30}
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                    "book" => Illuminate\Database\Eloquent\Collection {#5715
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                    0 => "*"
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                }
                8 => App\Models\Task {#5716
                  #connection: "mysql"
                  #table: "tasks"
                  #primaryKey: "id"
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                    "parent_branches" => Illuminate\Database\Eloquent\Collection {#5720
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                        0 => App\Models\Branch {#5677}
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                    "content" => Illuminate\Database\Eloquent\Collection {#5733
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                        0 => App\Models\Element {#5732 …30}
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    "tasks" => Illuminate\Database\Eloquent\Collection {#1006
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    "field_h1" => null
    "field_description_top" => null
    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1007}
    "content" => Illuminate\Database\Eloquent\Collection {#1048}
    "next" => array:2 [
      "refs" => "2112212"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "2112210"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1006}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Химия, 8 класс Учебник, авторы: Оспанова Мейрамкуль Кабылбековна, Аухадиева Кырмызы Сейсенбековна, Белоусова Татьяна Геннадьевна, издательство Мектеп, Алматы, 2018, радужного цвета, страница 39
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