下列反应的离子方程式书写正确的是(   ) A.浓烧减溶液中加入

下列反应的离子方程式书写正确的是(  

A.浓烧减溶液中加入铝片:Al + 2OHAlO2+H2

B.以石墨作电极电解氯化铝溶液:2Cl+2H2O 2OH+H2+Cl2   

C.硫酸亚铁溶液与稀硫酸、双氧水混合:2Fe2++H2O2 +2H+2Fe3++2H2O

D.硫酸氢钠溶液与足量氢氧化钡溶液混合:2H++SO42+Ba2++2OHBaSO4↓+2H2O

答案

C

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