离子反应知识是一条贯穿高中化学始终的“动脉”,是重点也是难点,在高考题中经常出现.在此作一分析总结,以供读者参考. 一、离子反应及其实质、离子方程式及其意义(略) Ion reaction knowledge is an “artery” that runs through high school chemistry. It is an important and difficult point. It often appears in college entrance examination questions. This is an analysis and summary for readers’ reference. I. Ion reaction and its essence, ion equation and its Meaning (slightly)