Расставьте коэффициенты в уравнениях реакций:
1) SO2 + O2  SO3
2) Al(OH)3  Al2O3 + H2O
3) FeСl3 + Zn  ZnCl2 + Fe
4) KOH + HNO3  KNO3 + H2O
5) CuO + HCl  CuCl2 + H2O
1) Cr(OH)3  Cr2O3 + H2O
2) CO + O2  CO2
3) K + H3PO4  K3PO4 + H2
4) MgO + H2SO4  MgSO4 + H2O
5) Ba(OH)2 + HNO3  Ba(NO3)2 + H2O
Помогите с этим
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