Предмет: Химия, автор: egorfed27

Можно помочь с Химией

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Автор ответа: Enimelia

Остальные делаются по аналогии.

1.Названия пишутся на пересечении, к примеру карбонат натрия

2.Формулы составляются по заряду, если у 1 части 2 (+), а у др. (-), то ставим 2 минуса, к примеру Na2(+)CO3 (2-) пишем Na2, т.к. у Na только 1 +

3. Mасса складывается из масс простых веществ, к примеру NaOH=Na 23)+O(16)+H(1)=40

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