Расставить коэффициенты
1.Zn + H2SO4 =ZnSO4 + H2
2.ZnO + H2SO4 =ZnSO4 + H2O
3.Al + H2SO4 = Al2(SO4)3 + H2
4.Al2O3 + H2SO4 = Al2(SO4)3 + H2O
5.Zn(OH)2 + H2SO4 = ZnSO4 + H2O
6.А1(ОН)3 + H2SO4 =

1. Zn+H2SO4=ZnSO4+H22.ZnO+H2SO4=ZnSO4+H2O3.2AL+3H2SO4=AL2(SO4)3+3H24.AL2O3+3H2SO4=AL2(SO4)3+3H2O5.Zn(OH)2+H2SO4=ZnSO4+2H2O6.2AL(OH)3+3H2SO4=AL2(SO4)3+6H2O