下列离子方程式书写正确的是

题干

下列离子方程式书写正确的是（）

A：小苏打中加入过量的石灰水：Ca²⁺+2OH^-+2HCO₃^-=CaCO₃↓+CO₃^2-+2H₂O

B：氧化铁可溶于氢碘酸：Fe₂O₃+6H⁺=2Fe³⁺+3H₂O

C：NaHSO₄与过量的Ba(OH)₂溶液反应：Ba²⁺+2OH^-+2H⁺+SO₄^2-=BaSO₄↓+2H₂O

D：明矾溶液加入Ba(OH)₂溶液至Ba²⁺恰好完全沉淀：Al³⁺+2SO₄^2-+2Ba²⁺+4OH^-=AlO₂^-+2BaSO₄↓+2H₂O

上一题下一题 0.0难度选择题更新时间:2015-02-06 07:33:06

D

A

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