下列离子方程式正确的是
A.KI溶液中滴加稀硫酸:4H+ +4I-+O2=2I2+2H2O |
B.过量SO2通入氨水中:2NH3·H2O+SO2=2NH4++SO32-+H2O |
C.NaAlO2溶液中滴加过量盐酸:AlO2-+H2O+H+= Al(OH)3↓ |
D.氨水滴入AgNO3溶液中至沉淀完全:Ag++2NH3·H2O=[Ag(NH3)2]++2H2O |
下列离子方程式正确的是
A.KI溶液中滴加稀硫酸:4H+ +4I-+O2=2I2+2H2O |
B.过量SO2通入氨水中:2NH3·H2O+SO2=2NH4++SO32-+H2O |
C.NaAlO2溶液中滴加过量盐酸:AlO2-+H2O+H+= Al(OH)3↓ |
D.氨水滴入AgNO3溶液中至沉淀完全:Ag++2NH3·H2O=[Ag(NH3)2]++2H2O |
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