August 2022 1 7 Report

Расставьте коэффициенты в уравнении реакции KMnO4+H2SO4+KNO4=MnSO4+KNO3+K2SO4+H2O.Ответ дайте в виде суммы коэффицинтов в уравнении.

1) 18

2) 19

3) 20

4) 21

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