Предмет: Химия, автор: рома892

какое количество веществ воды получится если в реакцию вступило 8 грамма водорода

Ответы

Автор ответа: ndambaeva

8g xmol
2H2+O2=2H2O
4g 2mol

x=8*2/4=4mol

Автор ответа: vasya2403

8 г Х моль
2Н2 + О2 -> 2H2O
n = 2 моль n = 2 моль
М = 2 г/моль
m = 4 г
8 г Н2 - Х моль Н2О
4 г Н2 - 2 моль Н2О
n(H2O) = 8 * 2 / 4 = 4 моль

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