Предмет: Химия, автор: 5imkafoma

химия!!!!! Помогите пожалуйста задание 5,8,9

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Ответы

Автор ответа: gobys2004

2

5
а) Н;О;С
б)Н2О;R2O;H2R
Сурен дальше не могу прости

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