Ca+H2CO3--->CaCO3+H2
Ca(OH)2+H2CO3--->CaCO3+2H2O
CaO+H2CO3--->CaCO3+H2O
Mg+H2S--->MgS+H2
Mg(OH)2+H2S--->MgS+2H2O
MgO+H2S--->MgS+H2O
6K+2H3PO4--->2K3PO4+3H2
3KOH+H3PO4--->K3PO4+3H2O
3K2O+2H3PO4--->2K3PO4+3H2O
Al(OH)3+3HCl--->AlCl3+3H2O
2Al+6HCl--->2AlCl3+3H2
Al2O6+6HCl--->2AlCl3+3H2O
Fe(OH)2+H2SO4--->FeSO4+2H2O
Fe+H2SO4--->FeSO4+H2
FeO+H2SO4--->FeSO4+H2O
Zn+2HNO3--->Zn(NO3)2+H2
Zn(OH)2+2HNO3--->Zn(NO3)2+2H2O
ZnO+2HNO3--->Zn(NO3)2+H2O
Cu(OH)2+H2SO4--->CuSO4+2H2O
CuO+H2SO4--->CuSO4+H2O
CuO+SO3--->CuSO4
