离子方程式的书写,是中学化学中的一个重要的知识点,也是历年高考的热点,其中试剂的滴加顺序、与反应物物质的量之比这类离子反应方程式的书写,又是高考热点中的难点,这类离子反应方程式的书写它不仅考查定性,同时也考查定量,为了系统复习此方面的内容,减少书写此类离子方程式出错的几率,现将常考的知识点归纳总结如下,供大家参考,以提高复习效率.常考类型一1.将少量NaOH溶液滴入过量的 Ion equation writing is an important point in middle school chemistry knowledge, but also the calendar year hot spots, which drops the order of reagent, and the amount of reactant substances such as ionic reaction equation writing, but also hot entrance exam The difficulty of this type of ionic reaction equation writing it not only test qualitative, but also test the quantitative, in order to review this aspect of the system, to reduce the probability of writing such ion equation error, now common knowledge points summarized as follows, for We refer to, in order to improve the efficiency of review. Often type a 1. A small amount of NaOH solution dripped into excess