离子方程式的书写及其正误判断是历年高考的重要考点,几乎每年都在考查。主要题型有:(一)离子方程式的书写,所考查的反应基本是中学所涉及的(也可能在题目中给了具体的信息);(二)给出具体条件下的离子方程式,让考生判断是否正确。这是高考第一卷常考的基本题型。现就第二种题型的情况进行归纳与分析如下: The writing of ion equations and their correctness and judgment are important test points for college entrance examinations over the years and they are examined almost every year. The main questions are: (a) the writing of ion equations. The responses examined are basically those involved in secondary school (and may also give specific information in the subject); (b) give ion equations under specific conditions to allow candidates to Judgment is correct. This is the basic question for the first exam of college entrance examination. The second type of question is summarized and analyzed as follows: