Предмет: Химия, автор: karina23010496

помогите срочно пожалуйста!!!!!!!!!СРОЧНО!!!!! ДАМ 100 БЫЛОВ

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Автор ответа: zero1223

Ответ на фото......................................

*У меня опечатка, где 9 и [ $OH^-$ ] будет $10^{-5}$ , а не $10^{-3}$

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1.___beforehand, we___the catastrophe.

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