October 2021 0 20 Report
в каких из приведенных ниже уравнений реакций соединение железа является окислительными в каких восстановительными 1/Fe2O3+3H=2Fe+3H2O 2/FeSO4+Mg=MgSO4+Fe 3/4Fe(OH)2+O2+2H2O=4Fe(OH)3 4/Fe2O3+3KNO3+4KOH=2K2FeO4+3KNO2+H2O
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