Предмет: Химия, автор: Yungsop

При растворении в фосфорной кислоте 14,2г сплава, содержащего медь и цинк, получили 3,5 л водорода (н.у.). Вычислите массовые доли цинка и меди в этом сплаве ?

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Автор ответа: diana010499

надеюсь понятно всё записала

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