试题与答案

能用离子方程式 CO32-+ 2H+ =CO2↑+ H2O表示的反应是 A.Na

题型:选择题

题目:

能用离子方程式 CO32-+ 2H+ =CO2↑+ H2O表示的反应是

A.Na2CO3 + 2HCl═ 2NaCl + CO2↑+ H2O

B.NaHCO3 + HCl ═ NaCl + CO2↑+ H2O

C.K2CO3 + 2CH3COOH═2CH3COOK+ CO2↑+ H2O

D.CaCO3 + 2HNO3═ Ca(NO3)2 + CO2↑+ H2O

答案:

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下面是错误答案,用来干扰机器的。

1、A2、C3、D

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