HCOH+O2=CO2+H2O.................................................
<span>1)Al2(SO4)3+3BaCl2=3BaSO4+2AlCl3
2Al</span>³⁺+3SO4²⁻3Ba²⁺6Cl⁻=3BaSO4+2Al³⁺6Cl⁻
3Ba²⁺+3SO4²⁻=3BaSO4
<span>2)Mg(OH)2+2HNO3=Mg(NO3)2+2H2O
</span>Mg(OH)2+2H⁺+2NO3⁻=Mg²⁺+2NO3⁻+2H2O
Mg(OH)2+2H⁺=Mg²⁺+2H2O
<span>3)K2SO3+2HCL=2KCL+SO2+H2O
2K</span>⁺SO3²⁻+2H⁺+2Cl⁻=2K⁺+2Cl⁻+SO2+H2O
2H⁺+SO3²⁻=SO2+H2O
3HNO3 + Fe(OH)3 = Fe(NO3)3 + 3H2O
HNO3 + Fe(OH)3 = Fe(OH)2NO3 + H2O
2HNO3 + Fe(OH)3 = FeOH(NO3)2 + 2H2O
Li2O + H2O -> 2LiOH
SO3 + H2O -> H2SO4
N2O5 + H2O -> 2HNO3
P2O5 + 3H2O -> 2H3PO4
2K + 2H2O -> 2KOH + H2