Решите 2 реакции принципом ОВР И расставьте коэффициенты.

1)KMnO4+FeSO4+H2SO4=Fe2(SO4)3+MnSO4+K2SO4+H20

2)KMn04+H2S+H2SO4=K2SO4+MnSO4+S+H2O

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