Предмет: Химия, автор: FUZI003

Помогите пожалуйста!!!!!!!!

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Автор ответа: karaMbitka

Ответ:

В 1 задании там до сотых делай, так точнее будет;

Во 2 там формула, чтоб найти неизвестное вещество: Массовую долю делить с относительной атомной массой ( округлять надо)

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karaMbitka: Там не г/моль, там а.е.м.

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