题目:
下列离子方程式正确的是:
A.漂白粉溶液中通入少量的SO2:Ca2++SO2+H2O+ClO-=CaSO3↓+2HClO
B.过量的小苏打混合:Ca2++ 2OH-+2HCO3-=CaCO3↓+2H2O+CO32-
C.铜溶于FeCl3溶液中:Fe3++Cu=Fe2++Cu2+
D.稀硝酸加入过量的铁粉:Fe + NO3-+4H+=Fe3++NO↑+2H2O澄清石灰水与
答案:
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