розставьте коефициенты

Zn +CuSO4 ->Cu + ZnSO4

Fe+CI2->FeCI3

Cu(OH)2 -> Cuo + H2O

NO2+H2O ->HNO2+HNO3

KCIO3->KCI+O2

Pb+O2->PbO

Zn+h2SO4->ZnSO4 + H2

Na2o2 + Na -> Na2O
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