5. Закончите уравнения реакций и ра, ставьте коэффициенты (4 балла) А) ...KMnO4 = ... K2MnO4 + ...MnO, + ........ В) ...CH4+ ...O2 = ...CO2 + ... C)...ZnS + ... = ..... + ...SO, D) ...Zn + H2SO4 = ...ZnSO4 + ...
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