能正确表示下列反应的离子方程式是
A.NaHCO3的水解:HCO3-+H2O=CO32-+H3O+ |
B.用银氨溶液检验乙醛的醛基: CH3CHO+2Ag(NH3)2OHCH3COO-+NH4++3NH3+2Ag↓+H2O |
C.向苯酚钠溶液中通入少量的CO2:CO2+H2O+2C6H5O-2C6H5OH+2CO32- |
D.泡沫灭火剂的原理:Al3++3HCO3-=Al(OH)3↓+3CO2↑ |
能正确表示下列反应的离子方程式是
A.NaHCO3的水解:HCO3-+H2O=CO32-+H3O+ |
B.用银氨溶液检验乙醛的醛基: CH3CHO+2Ag(NH3)2OHCH3COO-+NH4++3NH3+2Ag↓+H2O |
C.向苯酚钠溶液中通入少量的CO2:CO2+H2O+2C6H5O-2C6H5OH+2CO32- |
D.泡沫灭火剂的原理:Al3++3HCO3-=Al(OH)3↓+3CO2↑ |
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