July 2022 2 29 Report
Поставьте коэффициенты в уравнениях ОВР методом электронного баланса., а) KMnO4 + SO2 +H2O = K2SO4 + MnSO4 +H2SO4, б) K2Cr2O7 + SO2 + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O
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