论文部分内容阅读
电解质溶液中离子浓度大小关系,以及离子浓度大小比较,是高考的难点和重点。本文对近三年高考中有关离子浓度大小比较的题型作一总结,探究解题方法,以助力学生高考。一、电解质溶液型技巧点拨:分析离子浓度时,要抓住弱电解质电离程度小,盐水解程度小,平衡移动原理,弱电解质分步电离,以及改变条件能促进弱电
Electrolyte ion concentration in the relationship between the size, and the size of the ion concentration, is the difficulty and focus of the college entrance examination. This article in the past three years college entrance examination in the concentration of ion concentration to make a summary of the types of questions to explore the problem-solving methods to help students college entrance examination. First, the electrolyte solution type tips: Analysis of ion concentration, to seize the weak electrolyte ionization degree is small, the degree of salt hydrolysis, the principle of balanced movement, weak electrolyte step ionization, and change the conditions can promote weak electricity