下列离子方程式中正确的是
A.过量Ba(OH)2与NaHSO4溶液:Ba2++2OH-+2H++SO42-==BaSO4↓+2H2O |
B.向硫化铜固体滴加稀硝酸:S2-+2H+ = H2S↑ |
C.苯酚钠溶液中通入少量CO2:-O-+CO2+H2O→-OH+HCO3- |
D.氯化铝溶液中加入过量氨水:Al3+ + 4NH3•H2O = AlO2-+ 4NH4+ +2H2O |
下列离子方程式中正确的是
A.过量Ba(OH)2与NaHSO4溶液:Ba2++2OH-+2H++SO42-==BaSO4↓+2H2O |
B.向硫化铜固体滴加稀硝酸:S2-+2H+ = H2S↑ |
C.苯酚钠溶液中通入少量CO2:-O-+CO2+H2O→-OH+HCO3- |
D.氯化铝溶液中加入过量氨水:Al3+ + 4NH3•H2O = AlO2-+ 4NH4+ +2H2O |