April 2022 0 9 Report
Объём этилена C2H4 при нормальных условиях равен 448 дм³. Найди его массу.  

Вычисляй с точностью до десятых. В ответе запиши число. Например: 12,4.

Ответ: m(C2H4)=  г.

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