归纳法是高中化学学习常用的方法之一，某化学研究性学习小组在学习了《化学反应原理》

发布时间：2017-08-06 20:04 │ 来源：www.tikuol.com

题型：选择题

归纳法是高中化学学习常用的方法之一，某化学研究性学习小组在学习了《化学反应原理》后作出了如下的归纳总结：归纳正确的是（　　）

①常温下，pH=3的醋酸溶液与pH=11的NaOH溶液等体积混合，则有c（Na⁺）+c（H⁺）=c（OH^-）+c（CH₃COO^-）

②对已建立化学平衡的某可逆反应，当改变条件使化学平衡向正反应方向移动时，生成物的百分含量一定增加

③常温下，AgCl在同物质的量浓度的CaCl₂和NaCl溶液中的溶解度相同

④常温下，已知醋酸电离平衡常数为K_a；醋酸根水解平衡常数为K_h；水的离子积为K_w；则有：K_a•K_h=K_w

⑤电解精炼铜时，电解质溶液中铜离子浓度不变．

A．①④

B．①②④

C．①②④⑤

D．①②③④

完形填空。
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