一1、2Nacl+2H2O=2NaOH+Cl2+H2
2.Na2CO3+2HCl=2Nacl+H20+CO2
3.2AL(OH)3+3H2SO4=AL2(SO4)3+6H2O
4.NaHCO3+HCl =Nacl+H20+C02