2NaOH+CO2--NA2CO3+H2O
NaOH+CH3COOH-- CH3COONa+H2O
Al2O3+6HCL=2AlCl3+3H2O
Al2(SO4)3+6NaOH=2Al(OH)3 + 3Na2SO4
2NaOH+CO2--NA2CO3+H2O
NaOH+CH3COOH-- CH3COONa+H2O
Al2O3+6HCL=2AlCl3+3H2O
Al2(SO4)3+6NaOH=2Al(OH)3 + 3Na2SO4