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与量有关的离子方程式的书写

> 下列离子方程式正确的是（　　） A．NaHSO3溶液中投入过氧化钠粉末：4HSO3-+2Na2O2=4SO32-+O2↑+4Na+ B．惰性电极电解氯化钠溶液：2Cl-+2H2O 电解 . Cl2↑+H2↑+2OH- C．过量的氨水加入AlCl3溶液中：Al3++4NH3•H2O=AlO2-+4NH4++2H2O D．向次氯酸钙溶液通入过量CO2：Ca2++2ClO-+CO2+H2O=CaCO3↓+2HClO

问题：

发布时间：2024-09-12

下列离子方程式正确的是（　　）

A．NaHSO₃溶液中投入过氧化钠粉末：4HSO₃^-+2Na₂O₂=4SO₃^2-+O₂↑+4Na⁺

B．惰性电极电解氯化钠溶液：2Cl^-+2H₂O

电解

.

Cl₂↑+H₂↑+2OH^-

C．过量的氨水加入AlCl₃溶液中：Al³⁺+4NH₃•H₂O=AlO₂^-+4NH₄⁺+2H₂O

D．向次氯酸钙溶液通入过量CO₂：Ca²⁺+2ClO^-+CO₂+H₂O=CaCO₃↓+2HClO

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