“酸碱盐”这部分内容学习得如何,不仅直接关系到初中化学基础知识的熟练掌握,而且与继续深入学习高中化学关系甚大,同学们应把它学好.“酸碱盐”的重点是电离概念及酸碱盐的电离,几种常见的酸和碱,酸碱的通性和pH值,盐的性质和复分解反应发生的条件;难点是金属活动顺序的灵活运用.应掌握的要点如下: The content of this part of the “acid-base salt” is not only directly related to the mastery of basic knowledge of junior high school chemistry, but also has a great relationship with continuing to deepen the chemistry of high school. The students should learn it well. “acid-base salt” The focus is on the concept of ionization and the ionization of acid-base salts, several common acids and bases, the nature and pH of acids and bases, the nature of salts and the conditions for the occurrence of metathesis reactions; the difficulty is the flexible use of metal activity sequences. The main points are as follows: