Предмет: Химия, автор: marlenchik000004

В состав оксида лития входит 8 г кислорода. Рассчитайте массу (г) лития.

а) 7 б) 14 в) 12 г) 6

Ответы

Автор ответа: linksoff

0

Ответ:

Объяснение:

n(O)=8/16=0.5моль

n(Li)=2×0.5=1моль

m(Li)=1×7=7г вариант а)

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