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溶液中的粒子浓度比较与守恒关系是高中化学反应原理部分的学习重点、难点,也是高考命题的热点。掌握好溶液中的粒子浓度关系,难点在于梳理并建立常见电解质溶液的粒子浓度模型。粒子浓度关系同时考查到了强、弱电解质的电离,盐类的水解,溶液中各反应的程度大小排序等问题,对学生提出了很大的挑战。学生若能掌握并理解常见粒子浓度关系模型,学会将题中各种情况分析转化为常见粒子浓度模型分析,电解质溶液中的粒子浓度关系题型则迎刃而解。
Particle concentration in solution and the conservation of the relationship between the principle of high school chemistry part of the learning focus, the difficulty is also the hot topic college entrance examination. Grasp the relationship between particle concentration in solution, the difficulty lies in the combing and the establishment of common electrolyte solution particle concentration model. Particle concentration at the same time test the strong and weak electrolyte ionization, salt hydrolysis, the degree of the solution in the order of magnitude and other issues, the students posed a great challenge. Students who master and understand the relationship between common particle concentration model, learn to analyze the various conditions of the problem into a common model of particle concentration analysis, the relationship between particle concentration in electrolyte solution is readily solved.