Ответ:
3AsH3 + 4K2Cr2O7 + 16H2SO4 → -13H3AsO4 + 4Cr2(SO4)3 + 4K2SO4 + 16H3AsO4 + 16H2O
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Ответ:
3AsH3 + 4K2Cr2O7 + 16H2SO4 → -13H3AsO4 + 4Cr2(SO4)3 + 4K2SO4 + 16H3AsO4 + 16H2O