1.(多选)属于氧化还原反应的离子方程式的是:A.CaCO3+2H+=Ca2+CO2↑+H2O B.2Fe2++Cl2=2Fe3++2Cl-C.HCO3-+H+=CO2↑+H2O D.2Na+2H2O=2Na++2OH-+H2↑PS.像这类题该怎么判断?2.用FeCl3溶液腐蚀印刷电路板
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![1.(多选)属于氧化还原反应的离子方程式的是:A.CaCO3+2H+=Ca2+CO2↑+H2O B.2Fe2++Cl2=2Fe3++2Cl-C.HCO3-+H+=CO2↑+H2O D.2Na+2H2O=2Na++2OH-+H2↑PS.像这类题该怎么判断?2.用FeCl3溶液腐蚀印刷电路板](/uploads/image/z/3404022-6-2.jpg?t=1.%EF%BC%88%E5%A4%9A%E9%80%89%EF%BC%89%E5%B1%9E%E4%BA%8E%E6%B0%A7%E5%8C%96%E8%BF%98%E5%8E%9F%E5%8F%8D%E5%BA%94%E7%9A%84%E7%A6%BB%E5%AD%90%E6%96%B9%E7%A8%8B%E5%BC%8F%E7%9A%84%E6%98%AF%EF%BC%9AA.CaCO3%EF%BC%8B2H%2B%3DCa2%EF%BC%8BCO2%E2%86%91%EF%BC%8BH2O+B.2Fe2%2B%EF%BC%8BCl2%3D2Fe3%2B%EF%BC%8B2Cl-C.HCO3-%EF%BC%8BH%2B%3DCO2%E2%86%91%EF%BC%8BH2O+D.2Na%EF%BC%8B2H2O%3D2Na%2B%EF%BC%8B2OH-%EF%BC%8BH2%E2%86%91PS.%E5%83%8F%E8%BF%99%E7%B1%BB%E9%A2%98%E8%AF%A5%E6%80%8E%E4%B9%88%E5%88%A4%E6%96%AD%3F2.%E7%94%A8FeCl3%E6%BA%B6%E6%B6%B2%E8%85%90%E8%9A%80%E5%8D%B0%E5%88%B7%E7%94%B5%E8%B7%AF%E6%9D%BF)
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