Прировняйте уравнения
Mn2O7-MnO2+O2
Fe(OH)3+H2SO-Fe2(SO4)3+H2O
PH3+O2-P2O5+H2O
BaCl2+Fe2(SO4)3-FeCl3+BaSO4
2Mn2O7-4MnO2+3O24Fe(OH)3+6H2SO4-2Fe2(SO4)3+12H2O4PH3+8O2-2P2O5+6H2O9BaCl2+3Fe2(SO4)3-6FeCl3+9BaSO4
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Answers & Comments
2Mn2O7-4MnO2+3O2
4Fe(OH)3+6H2SO4-2Fe2(SO4)3+12H2O
4PH3+8O2-2P2O5+6H2O
9BaCl2+3Fe2(SO4)3-6FeCl3+9BaSO4