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与量有关的离子方程式的书写

> 能正确解释下列反应原理的离子方程式（　　） A．AlCl3溶液中通入过量的NH3：Al3++4NH3•H2O=AlO2-+4NH4+ B．淀粉碘化钾试纸上滴稀硝酸变蓝：2I-+4H++NO3-=I2+NO↑+2H2O C．电解MgCl2饱和溶液：MgCl2 电解 . Mg+Cl2↑ D．用碳酸钠溶液浸泡锅炉水垢：CaSO4+CO32-═CaCO3↓+SO42-

问题：

发布时间：2024-09-13

能正确解释下列反应原理的离子方程式（　　）

A．AlCl₃溶液中通入过量的NH₃：Al³⁺+4NH₃•H₂O=AlO₂^-+4NH₄⁺

B．淀粉碘化钾试纸上滴稀硝酸变蓝：2I^-+4H⁺+NO₃^-=I₂+NO↑+2H₂O

C．电解MgCl₂饱和溶液：MgCl₂

电解

.

Mg+Cl₂↑

D．用碳酸钠溶液浸泡锅炉水垢：CaSO₄+CO₃^2-═CaCO₃↓+SO₄^2-

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