October 2021 0 14 Report
MnO2+ HCl = MnCl2 + Cl2 + H2O найдите объем хлора если взаимодействуют 8,7 г оксида марганца (валентность равна 4) и 42,9 мл 36%раствора соляной кислоты с плотностью 1,183 г/мл
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