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盐类水解是《化学反应原理》的内容,是高考必考知识点,也是题型最活,考查力度最强,应用也最广泛的知识,考查的主要形式有:影响盐类水解的因素、水解离子方程式的书写与判断、离子浓度大小比较、盐溶液酸碱性比较和水解平衡移动等。笔者现结合2014年高考就盐类水解的考点分析如下:考点一:盐类水解的实质及规律1.盐类水解的实质盐类在溶液中电离出的弱离子(弱的阴离子或弱的阳离子)跟水电离出的H+或OH-结合生成难电离的弱酸(或离子)或弱碱,从而破坏了水的电离平衡,使水的电离程度增大。盐类反
Salt hydrolysis is the content of “chemical reaction principle”, which is the knowledge of the college entrance examination must be the exam, but also the type of the most questions, the strongest test, the most widely used knowledge, test the main forms are: factors that affect salt hydrolysis, Hydrolytic ion equation writing and judging, ion concentration size comparison, salt solution acid-base comparison and hydrolysis balance movement. The author is now combined with 2014 college entrance examination of salt hydrolysis test points are as follows: Test a: the nature of salt hydrolysis and the law of 1 salt hydrolysis of the actual salts in the solution ionization of weak ions (weak anion or weak cation ) With the water from the H + or OH- to produce ionized weak acid (or ion) or weak base, thus undermining the water ionization equilibrium, the degree of ionization of water increases. Salt anti