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Ответ

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KINGNUR

Ответ:

34,2 гр второго продукта и 4,48 дм^3

Объяснение:

Ba + 2H2O = Ba(OH)2 + H2

27,4 --- x=34,2(гр)

137 --- 171

1)27,4/137= 0,2 моль бария

2) 0,2*22,4=4,48 дм^3(л)

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