Расставьте коэффициенты, преобразовав схемы в уравнения реакции Cu(NO3)2->CuO+NO2+O2 Fe3O4+CO->CO2+Fe Br2+KI->KBr+I2 KCIO->KCIO3+KCI
Cr2O3+Mg->MgO+Cr Fe2O3+H2->H2O+Fe Zn+FeBr3->ZnBr2+Fe
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