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电化学原理及其应用的考查是近年各地高考的热点题型之一,考题往往以原电池和电解池的综合题为主,考查的知识一般涉及到电极名称的判断、电极反应式的书写、电子转移的方向、离子移动的方向、溶液pH的判断以及有关的计算等。学生在解答这类问题时,常常感到比较麻烦,而且错误率也较高。通过与学生的交流,发现导致产生错误的根源是学生没有抓住
The electrochemical principle and its application of examination is one of the hottest questions in recent years, the test questions are often based on the original battery and electrolysis cell comprehensive questions, test knowledge generally involves the judge of the electrode name, electrode reaction type of writing, The direction of electron transfer, the direction of ion movement, the determination of solution pH, and related calculations. Students often find it troublesome when it comes to answering such questions, and they also have higher error rates. Through communication with students, we found that the root cause of mistakes was that students did not catch