October 2021 1 33 Report

Решить как окислительно-восстановительные реакции

KMnO4 - K2MnO4 + MnO2 + O2

Cu2S + O2 + CaCo3 - Cuo + CaSO3 + CO2

FeCl + KMnO4 + HCl - FeCl3 + Cl2 + MnCl2 + KCl + H2O

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