June 2023 1 6 Report
расставьте коэффициенты методом Эл. баланса
1. KnMnO4 + KNO2 +H2SO4 = K2SO4 + MnSO4 + KNO3 + H2O
2 Zn + H2SO4 = ZnSO4 + SO2 +H2O
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