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原电池知识是高中化学中的重要概念,也是新课标高考的热点.在学习原电池时,学生最感困惑的是电极反应式的书写,为了帮助同学们准确把握电池的电极反应式的写法,笔者在教学中不断探索,归纳出一些原电池电极反应方程式书写的规律,使学生在书写电极反应时形成程序化与公式化,现将这些规律介绍给大家,供参考.常见电极反应式以及书写技巧归纳:(1)负极:①金属单质:M-ne-=Mn+
The original battery knowledge is an important concept in high school chemistry, but also a hot spot for the new curriculum standard college entrance examination in learning the original battery, the students most confused is the electrode reaction writing, in order to help students accurately grasp the battery electrode reaction written , The author continued to explore in teaching, summed up some of the original battery electrode response equation writing rules, so that students in the formation of the electrode response to the formation of programmed and formulaic, these rules are introduced to you for reference. Common electrode reaction and writing Skills summarized: (1) negative: ① metal elemental: M-ne- = Mn +