试题与答案

下列化学原理表述正确的是（） A．氢硫酸溶液加水稀释，电离程度增大，H+浓度增大

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题型：选择题

题目：

下列化学原理表述正确的是 （    ）

A．氢硫酸溶液加水稀释，电离程度增大，H+浓度增大

B．同体积同pH的盐酸和醋酸与足量的锌反应，醋酸的反应速率快，生成H2的物质的量多

C．NaHCO3溶液不显中性的原因：HCO3-+H2OCO32-+H3O+

D．Na2CO3溶液中满足：2c(Na+)=c(CO32-)+ c(HCO3-)+ c(H2CO3)

答案：

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