下列反应的离子方程式书写正确的是A.浓烧碱溶液中加入铝片:Al+

下列反应的离子方程式书写正确的是

A.浓烧碱溶液中加入铝片:Al+2OH- = AlO2  -+H2

B.以石墨作电极电解氯化铝溶液:2Cl+2H2O2OH+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++SO4  2-+Ba2++2OH- = BaSO4↓+2H2O

 

答案

C

解析:

 

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