离子反应是中学化学理论中一个重要组成部分,也是高考的重点和热点,经常从离子共存和离子方程式的书写角度考查。于是大家围绕这方面不断加强训练,不断加以总结。笔者以为这只是基本要求,更有必要重视离子方程式的应用。因为学了就要把它当作工具来用,这才是根本。 Ion reaction is an important part of high school chemistry theory, but also the focus of college entrance examination and hot spots, often from the ion coexistence and ion equation of writing perspective. So everyone around this area continue to strengthen training, continue to be summed up. I think this is only a basic requirement, it is more necessary to attach importance to the application of ion equation. Because we must learn it as a tool to use, this is the fundamental.