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电解原理是高中化学重要理论部分之一,在考卷中出现频率较高,但学生得分率较低,究其原因主要有如下四点:阴、阳极判断不准确;忽略阳极材料分析;电解质溶液中离子种类分析不透;阴、阳离子放电顺序记不牢。为了提高认知水平和解题能力,现在把形似神非的四道题解析如下,希望这四道题能起到抛砖引玉之功效,在解题过程中能够同中求异,抓住本质,快速准确解题。
The principle of electrolysis is one of the important theoretical parts of chemistry in senior high school. The higher the frequency of examination, the lower the score of students. There are mainly four reasons: the inaccurate judgment of cathode and anode, the analysis of anode material, the electrolyte solution Analysis of ion species is not transparent; anion, cation discharge is not strong in mind. In order to improve the level of cognition and problem solving skills, the four questions that are similar in form and nature are now analyzed as follows. I hope these four questions can serve as a valuable guide to resolving problems in different ways, Accurate problem solving.