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Cuprumhidroxside

Ответ:

Объяснение:

2KClO₃=2KCl+3O₂ (реакция протекает при нагревании в присутствии МnO₂)

n(KClO₃):n(O₂)=2:3, значит n(O₂)=0,5 моль/2×3=0,75 моль

V(O₂)=n×Vm=0, 75 моль×22,4 л/моль=16,8 л

Ответ: 16,8 л

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