Задача 1. Закончить уравнения реакций и расставить коэффициенты PCl5 + SO2 → ;
SO2 + Cl2 →;
SO3 + HCl →;
H2SO4(конц.) + PCl5 →;
SeCl2 + H2O →;
As2S3 + HNO3 →;
FeS2 + HNO3 →;
Zn + NH3 + NH4Cl →;
Na2SO4 + C + CaCO3 →;
Pb3O4 + NaClO →;
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