Номер 2, страница 106 - гдз по химии 10 класс учебник Еремин, Кузьменко

Химия, 10 класс Учебник, авторы: Еремин Вадим Владимирович, Кузьменко Николай Егорович, Теренин Владимир Ильич, Дроздов Андрей Анатольевич, Лунин Валерий Васильевич, издательство Просвещение, Москва, 2019, белого цвета

Авторы: Еремин В. В., Кузьменко Н. Е., Теренин В. И., Дроздов А. А., Лунин В. В.

Тип: Учебник

Издательство: Просвещение, Дрофа

Год издания: 2019 - 2026

Уровень обучения: базовый

Цвет обложки: белый, красный с молекулами

ISBN: 978-5-09-099533-7 (2022)

Допущено Министерством просвещения Российской Федерации

Глава 3. Кислород- и азотсодержащие органические соединения. Параграф 17. Жиры - номер 2, страница 106.

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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1138
                      #items: array:2 [
                        0 => App\Models\Term {#1139
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 5153
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Просвещение"
                            "field_cases" => null
                            "field_translit" => "prosveschenie"
                          ]
                          #original: array:6 [
                            "id" => 5153
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Просвещение"
                            "field_cases" => null
                            "field_translit" => "prosveschenie"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Term {#1140
                          #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" => 5148
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Дрофа"
                            "field_cases" => null
                            "field_translit" => "drofa"
                          ]
                          #original: array:6 [
                            "id" => 5148
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Дрофа"
                            "field_cases" => null
                            "field_translit" => "drofa"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1141
                      #items: array:5 [
                        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:12 [
                            "id" => 4330
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Еремин"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Вадим"
                            "field_patronymic" => "Владимирович"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 4330
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Еремин"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Вадим"
                            "field_patronymic" => "Владимирович"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Term {#1143
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 4876
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Кузьменко"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Николай"
                            "field_patronymic" => "Егорович"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 4876
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Кузьменко"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Николай"
                            "field_patronymic" => "Егорович"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        2 => App\Models\Term {#1144
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 5912
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Теренин"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Владимир"
                            "field_patronymic" => "Ильич"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 5912
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Теренин"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Владимир"
                            "field_patronymic" => "Ильич"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        3 => App\Models\Term {#1145
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 4290
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Дроздов"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Андрей"
                            "field_patronymic" => "Анатольевич"
                            "field_surname_rp" => null
                          ]
                          #original: array:12 [
                            "id" => 4290
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Дроздов"
                            "field_bio" => null
                            "field_degree_rp" => null
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Андрей"
                            "field_patronymic" => "Анатольевич"
                            "field_surname_rp" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        4 => App\Models\Term {#1146
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:12 [
                            "id" => 5031
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Лунин"
                            "field_bio" => null
                            "field_degree_rp" => "доктор химических наук, академика РАН"
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Валерий"
                            "field_patronymic" => "Васильевич"
                            "field_surname_rp" => "Лунина"
                          ]
                          #original: array:12 [
                            "id" => 5031
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Лунин"
                            "field_bio" => null
                            "field_degree_rp" => "доктор химических наук, академика РАН"
                            "field_foreign_lang_name" => null
                            "field_foreign_lang_patronymic" => null
                            "field_foreign_lang_surname" => null
                            "field_name" => "Валерий"
                            "field_patronymic" => "Васильевич"
                            "field_surname_rp" => "Лунина"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1147
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1148
                      #items: array:1 [
                        0 => App\Models\Term {#1149
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:10 [
                            "id" => 6671
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Учебник"
                            "field_book_type_foreign" => null
                            "field_cases" => array:6 [ …6]
                            "field_plural_form" => null
                            "field_short_name" => null
                            "field_short_name_foreign" => null
                            "field_translit" => "uchebnik"
                          ]
                          #original: array:10 [
                            "id" => 6671
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Учебник"
                            "field_book_type_foreign" => null
                            "field_cases" => array:6 [ …6]
                            "field_plural_form" => null
                            "field_short_name" => null
                            "field_short_name_foreign" => null
                            "field_translit" => "uchebnik"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1150
                      #items: array:1 [
                        0 => App\Models\Term {#1151
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 9
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Россия"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "rossiya"
                          ]
                          #original: array:6 [
                            "id" => 9
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Россия"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "rossiya"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1152
                      #items: array:1 [
                        0 => App\Models\Term {#1153
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 15
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Москва"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "moskva"
                          ]
                          #original: array:6 [
                            "id" => 15
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "Москва"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "moskva"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1154
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1155
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1156
                      #items: array:1 [
                        0 => App\Models\Term {#1157
                          #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" => 38
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "базовый"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "bazovyy"
                          ]
                          #original: array:6 [
                            "id" => 38
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "базовый"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "bazovyy"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1158
                      #items: array:1 [
                        0 => App\Models\Term {#1159
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:10 [
                            "id" => 6706
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "ФГОС (старый)"
                            "field_cases" => array:6 [ …6]
                            "field_color" => null
                            "field_end_year" => "2022"
                            "field_start_year" => "2019"
                            "field_translit" => "fgos-old"
                            "field_type" => null
                          ]
                          #original: array:10 [
                            "id" => 6706
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "ФГОС (старый)"
                            "field_cases" => array:6 [ …6]
                            "field_color" => null
                            "field_end_year" => "2022"
                            "field_start_year" => "2019"
                            "field_translit" => "fgos-old"
                            "field_type" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => "9"
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1160
                      #items: array:1 [
                        0 => App\Models\Term {#1161
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 33
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "стереотипное"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "stereotipnoe"
                          ]
                          #original: array:6 [
                            "id" => 33
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "стереотипное"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "stereotipnoe"
                          ]
                          #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_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1162
                      #items: array:1 [
                        0 => App\Models\Term {#1146}
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition_degree" => "доктор химических наук, академика РАН"
                    "field_cover_description" => "с молекулами"
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => null
                    "field_allowed" => "Допущено Министерством просвещения Российской Федерации"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "314"
                    "field_priority" => "8"
                    "field_default_folder" => "/himiya_10/Eremin-u19/"
                    "field_isbn" => "978-5-09-099533-7 (2022)"
                    "field_cover" => array:1 [
                      0 => "/media/himiya_10/Eremin-u19/covers/cover1.webp?ts=1743927644"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/himiya_10/Eremin-u19/covers/cover1.webp?ts=1743927644"
                        "alt" => ""
                        "width" => "1444"
                        "height" => "2154"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1163
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1164
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1165
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/10-klass/himiya/eremin-uchebnik-bazovyj"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1166
                      #items: array:2 [
                        0 => App\Models\Term {#1167
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
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                          +exists: true
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                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 45
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "белый"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "belyy"
                          ]
                          #original: array:6 [
                            "id" => 45
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "белый"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "belyy"
                          ]
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                          #attributeCastCache: []
                          #dateFormat: null
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                          #hidden: []
                          #visible: []
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                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                        1 => App\Models\Term {#1168
                          #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" => 46
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "красный"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "krasnyy"
                          ]
                          #original: array:6 [
                            "id" => 46
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "красный"
                            "field_cases" => array:6 [ …6]
                            "field_translit" => "krasnyy"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
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                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 381
                      "subject" => 558
                      "class_subject" => 500
                    ]
                  ]
                  #original: array:50 [
                    "id" => 871
                    "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 {#1135}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1136}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1138}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1141}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1147}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1148}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1150}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1152}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1154}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1155}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1156}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1158}
                    "field_publication_number" => "9"
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1160}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1162}
                    "field_under_the_edition_degree" => "доктор химических наук, академика РАН"
                    "field_cover_description" => "с молекулами"
                    "field_publication_year" => "2019"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => null
                    "field_allowed" => "Допущено Министерством просвещения Российской Федерации"
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "314"
                    "field_priority" => "8"
                    "field_default_folder" => "/himiya_10/Eremin-u19/"
                    "field_isbn" => "978-5-09-099533-7 (2022)"
                    "field_cover" => array:1 [
                      0 => "/media/himiya_10/Eremin-u19/covers/cover1.webp?ts=1743927644"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/himiya_10/Eremin-u19/covers/cover1.webp?ts=1743927644"
                        "alt" => ""
                        "width" => "1444"
                        "height" => "2154"
                      ]
                    ]
                    "field_popular_book" => null
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1163}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1164}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1165}
                    "field_url" => "/10-klass/himiya/eremin-uchebnik-bazovyj"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1166}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 381
                      "subject" => 558
                      "class_subject" => 500
                    ]
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
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                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1169
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 850076
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Кислород- и азотсодержащие органические соединения"
            "field_branch_order" => "3"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1134}
            "field_page_start" => "67"
            "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 {#1171}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1169}
          ]
          #changes: []
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          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
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          #dispatchesEvents: []
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1170
          #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" => 850085
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Жиры"
            "field_branch_order" => "17"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1175
              #items: array:1 [
                0 => App\Models\Term {#1172
                  #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 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #original: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
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                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "101"
            "field_branch_display" => "0"
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            "field_display_branch_in_title" => "1"
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            "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
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            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1174
              #items: array:1 [
                0 => App\Models\Book {#1133}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1173
              #items: array:1 [
                0 => App\Models\Branch {#1034}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 850085
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Жиры"
            "field_branch_order" => "17"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1175}
            "field_page_start" => "101"
            "field_branch_display" => "0"
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            "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
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            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
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            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1174}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1173}
          ]
          #changes: []
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          +timestamps: true
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          #hidden: []
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            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "content" => Illuminate\Database\Eloquent\Collection {#1106
      #items: array:3 [
        0 => App\Models\Element {#1097
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
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          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:7 [
            "id" => 1023618
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1086
              #items: array:1 [
                0 => App\Models\Edition {#1091
                  #connection: "mysql"
                  #table: "editions"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
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                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:21 [
                    "id" => 4494
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
                    "field_order" => "1"
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1094 …2}
                    "field_content_type" => "free"
                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1093 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1092 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1088 …2}
                    "field_content_source" => null
                  ]
                  #original: array:21 [
                    "id" => 4494
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "title" => "Условие"
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                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1094 …2}
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                    "field_content_mode" => "text, image"
                    "field_page_content_mode" => "image"
                    "field_content_text_checked" => null
                    "field_page_content_text_checked" => "0"
                    "field_solution_author" => "Автор"
                    "field_moderator" => "pasha"
                    "field_edition_type" => "statement"
                    "field_root_dir" => "0-"
                    "field_responsible" => Illuminate\Database\Eloquent\Collection {#1093 …2}
                    "field_comment" => null
                    "field_similar_book" => Illuminate\Database\Eloquent\Collection {#1092 …2}
                    "field_process_formula" => "katex"
                    "field_edition_group" => Illuminate\Database\Eloquent\Collection {#1088 …2}
                    "field_content_source" => null
                  ]
                  #changes: []
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                  #attributeCastCache: []
                  #dateFormat: null
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "task" => array:2 [
              "refs" => "850269"
              "type" => "task"
            ]
            "text" => "<p><strong>2.</strong> Напишите структурную формулу твёрдого жира, образованного только одной карбоновой кислотой и содержащего 51 атом углерода в молекуле.</p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "2-1.jpg"
                "alt" => null
                "width" => "863"
                "height" => 138
                "path" => "/media/himiya_10/Eremin-u19/0-17/2-1.webp?ts=1744029017"
              ]
            ]
          ]
          #original: array:7 [
            "id" => 1023618
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1086}
            "task" => array:2 [
              "refs" => "850269"
              "type" => "task"
            ]
            "text" => "<p><strong>2.</strong> Напишите структурную формулу твёрдого жира, образованного только одной карбоновой кислотой и содержащего 51 атом углерода в молекуле.</p>"
            "img" => array:1 [
              0 => array:5 [
                "name" => "2-1.jpg"
                "alt" => null
                "width" => "863"
                "height" => 138
                "path" => "/media/himiya_10/Eremin-u19/0-17/2-1.webp?ts=1744029017"
              ]
            ]
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
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          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Element {#1090
          #connection: "mysql"
          #table: "elements"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:6 [
            "id" => 1023626
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "edition" => Illuminate\Database\Eloquent\Collection {#1129
              #items: array:1 [
                0 => App\Models\Edition {#1089
                  #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" => 4495
                    "created_at" => "2026-04-10 13:58:26"
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            "text" => "<p><strong>Дано:</strong></p><p><span>Твёрдый жир (триглицерид).</span><br><span>Образован одной карбоновой кислотой.</span><br><span>Общее число атомов углерода в молекуле жира $N_C = 51$.</span></p><p><strong>Найти:</strong></p><p><span>Структурная формула жира - ?</span></p><p><strong>Решение:</strong></p><p><span>Жиры, или триглицериды, являются сложными эфирами трёхатомного спирта глицерина и высших карбоновых кислот. По условию, жир образован только одной карбоновой кислотой, следовательно, он является простым триглицеридом, и все три ацильных остатка в его молекуле одинаковы.</span><br><span>Общая формула такого жира:</span><br>$ \begin{array}{l} \large CH_2-O-CO-R \\ \large | \\ \large CH-O-CO-R \\ \large | \\ \large CH_2-O-CO-R \end{array} $<br><span>где $R$ — углеводородный радикал карбоновой кислоты.</span></p><p><span>1. Найдём общее число атомов углерода, приходящееся на три кислотных остатка. Глицериновый остаток ($CH_2-CH-CH_2$) вносит в молекулу 3 атома углерода. Следовательно, на три кислотных остатка приходится:</span><br>$51 \text{ (всего C)} - 3 \text{ (C в глицерине)} = 48 \text{ атомов углерода.}$</p><p><span>2. Поскольку все три кислотных остатка одинаковы, найдём число атомов углерода в одном кислотном остатке. Кислотный остаток имеет формулу $-CO-R$.</span><br>$48 / 3 = 16 \text{ атомов углерода.}$</p><p><span>3. Определим формулу карбоновой кислоты. Исходная карбоновая кислота ($R-COOH$) содержит столько же атомов углерода, сколько и её остаток, то есть 16.</span><br><span>Условие, что жир является твёрдым, указывает на то, что он образован насыщенной (предельной) карбоновой кислотой. Общая формула насыщенных одноосновных карбоновых кислот — $C_nH_{2n+1}COOH$.</span><br><span>Общее число атомов углерода в такой кислоте равно $n + 1$.</span><br><span>Составляем уравнение:</span><br>$n + 1 = 16$<br>$n = 15$<br><span>Следовательно, формула кислоты — $C_{15}H_{31}COOH$. Это пальмитиновая кислота (гексадекановая кислота).</span></p><p><span>4. Запишем структурную формулу жира. Он представляет собой триглицерид пальмитиновой кислоты (трипальмитин), где радикал $R$ это $C_{15}H_{31}$, который можно представить как $-(CH_2)_{14}-CH_3$.</span><br><span>Структурная формула жира:</span></p><p>$ \begin{array}{l} \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \end{array} $</p><p><strong>Ответ:</strong></p><p><span>Структурная формула твёрдого жира, содержащего 51 атом углерода, — это формула трипальмитина:</span><br><br>$ \begin{array}{l} \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \end{array} $</p>"
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            "text" => "<p><strong>Дано:</strong></p><p><span>Твёрдый жир (триглицерид).</span><br><span>Образован одной карбоновой кислотой.</span><br><span>Общее число атомов углерода в молекуле жира $N_C = 51$.</span></p><p><strong>Найти:</strong></p><p><span>Структурная формула жира - ?</span></p><p><strong>Решение:</strong></p><p><span>Жиры, или триглицериды, являются сложными эфирами трёхатомного спирта глицерина и высших карбоновых кислот. По условию, жир образован только одной карбоновой кислотой, следовательно, он является простым триглицеридом, и все три ацильных остатка в его молекуле одинаковы.</span><br><span>Общая формула такого жира:</span><br>$ \begin{array}{l} \large CH_2-O-CO-R \\ \large | \\ \large CH-O-CO-R \\ \large | \\ \large CH_2-O-CO-R \end{array} $<br><span>где $R$ — углеводородный радикал карбоновой кислоты.</span></p><p><span>1. Найдём общее число атомов углерода, приходящееся на три кислотных остатка. Глицериновый остаток ($CH_2-CH-CH_2$) вносит в молекулу 3 атома углерода. Следовательно, на три кислотных остатка приходится:</span><br>$51 \text{ (всего C)} - 3 \text{ (C в глицерине)} = 48 \text{ атомов углерода.}$</p><p><span>2. Поскольку все три кислотных остатка одинаковы, найдём число атомов углерода в одном кислотном остатке. Кислотный остаток имеет формулу $-CO-R$.</span><br>$48 / 3 = 16 \text{ атомов углерода.}$</p><p><span>3. Определим формулу карбоновой кислоты. Исходная карбоновая кислота ($R-COOH$) содержит столько же атомов углерода, сколько и её остаток, то есть 16.</span><br><span>Условие, что жир является твёрдым, указывает на то, что он образован насыщенной (предельной) карбоновой кислотой. Общая формула насыщенных одноосновных карбоновых кислот — $C_nH_{2n+1}COOH$.</span><br><span>Общее число атомов углерода в такой кислоте равно $n + 1$.</span><br><span>Составляем уравнение:</span><br>$n + 1 = 16$<br>$n = 15$<br><span>Следовательно, формула кислоты — $C_{15}H_{31}COOH$. Это пальмитиновая кислота (гексадекановая кислота).</span></p><p><span>4. Запишем структурную формулу жира. Он представляет собой триглицерид пальмитиновой кислоты (трипальмитин), где радикал $R$ это $C_{15}H_{31}$, который можно представить как $-(CH_2)_{14}-CH_3$.</span><br><span>Структурная формула жира:</span></p><p>$ \begin{array}{l} \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \end{array} $</p><p><strong>Ответ:</strong></p><p><span>Структурная формула твёрдого жира, содержащего 51 атом углерода, — это формула трипальмитина:</span><br><br>$ \begin{array}{l} \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \end{array} $</p>"
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№2 (с. 106)
Условие. №2 (с. 106)
скриншот условия
Химия, 10 класс Учебник, авторы: Еремин Вадим Владимирович, Кузьменко Николай Егорович, Теренин Владимир Ильич, Дроздов Андрей Анатольевич, Лунин Валерий Васильевич, издательство Просвещение, Москва, 2019, белого цвета, страница 106, номер 2, Условие

2. Напишите структурную формулу твёрдого жира, образованного только одной карбоновой кислотой и содержащего 51 атом углерода в молекуле.

Решение. №2 (с. 106)
Химия, 10 класс Учебник, авторы: Еремин Вадим Владимирович, Кузьменко Николай Егорович, Теренин Владимир Ильич, Дроздов Андрей Анатольевич, Лунин Валерий Васильевич, издательство Просвещение, Москва, 2019, белого цвета, страница 106, номер 2, Решение
Решение 2. №2 (с. 106)

Дано:

Твёрдый жир (триглицерид).
Образован одной карбоновой кислотой.
Общее число атомов углерода в молекуле жира $N_C = 51$.

Найти:

Структурная формула жира - ?

Решение:

Жиры, или триглицериды, являются сложными эфирами трёхатомного спирта глицерина и высших карбоновых кислот. По условию, жир образован только одной карбоновой кислотой, следовательно, он является простым триглицеридом, и все три ацильных остатка в его молекуле одинаковы.
Общая формула такого жира:
$ \begin{array}{l} \large CH_2-O-CO-R \\ \large | \\ \large CH-O-CO-R \\ \large | \\ \large CH_2-O-CO-R \end{array} $
где $R$ — углеводородный радикал карбоновой кислоты.

1. Найдём общее число атомов углерода, приходящееся на три кислотных остатка. Глицериновый остаток ($CH_2-CH-CH_2$) вносит в молекулу 3 атома углерода. Следовательно, на три кислотных остатка приходится:
$51 \text{ (всего C)} - 3 \text{ (C в глицерине)} = 48 \text{ атомов углерода.}$

2. Поскольку все три кислотных остатка одинаковы, найдём число атомов углерода в одном кислотном остатке. Кислотный остаток имеет формулу $-CO-R$.
$48 / 3 = 16 \text{ атомов углерода.}$

3. Определим формулу карбоновой кислоты. Исходная карбоновая кислота ($R-COOH$) содержит столько же атомов углерода, сколько и её остаток, то есть 16.
Условие, что жир является твёрдым, указывает на то, что он образован насыщенной (предельной) карбоновой кислотой. Общая формула насыщенных одноосновных карбоновых кислот — $C_nH_{2n+1}COOH$.
Общее число атомов углерода в такой кислоте равно $n + 1$.
Составляем уравнение:
$n + 1 = 16$
$n = 15$
Следовательно, формула кислоты — $C_{15}H_{31}COOH$. Это пальмитиновая кислота (гексадекановая кислота).

4. Запишем структурную формулу жира. Он представляет собой триглицерид пальмитиновой кислоты (трипальмитин), где радикал $R$ это $C_{15}H_{31}$, который можно представить как $-(CH_2)_{14}-CH_3$.
Структурная формула жира:

$ \begin{array}{l} \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \end{array} $

Ответ:

Структурная формула твёрдого жира, содержащего 51 атом углерода, — это формула трипальмитина:

$ \begin{array}{l} \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH - O - CO - (CH_2)_{14} - CH_3 \\ \large | \\ \large CH_2 - O - CO - (CH_2)_{14} - CH_3 \end{array} $

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