March 2022 1 68 Report
Расставить коэффициенты в уравнениях ОВР:

1. KOH + CuCl2 → KCl+ Cu(OH)2

2. Cu(OH)2 → CuO + H2O

3. H2SO4 + Cu → SO2 + H2O + CuSO4

4. PbO2 + MnSO4 + HNO3 → PbSO4 +Pb(NO3)2 + HMnO4 + H2O

Желательно с объяснением
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