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中考对溶液考查的重要知识点有:溶液、溶剂、溶质的概念;溶液、乳浊液的性质与应用;物质在水中溶解时溶液的温度变化;溶质的质量分数的概念、涵义和计算方法;溶液稀释、浓缩、配制等方面的计算;涉及化学反应过程中有关溶液中溶质质量分数的计算。命题的热点在溶液的特征与应用,联系生产、生活实际题,以及涵盖多个知识点的学科内外综合题。题型主要有选择题、填空题、简答题。下面我们就结合几道中考题对溶液解题方法进行解析。
The important knowledge of the test on the examination of the solution points are: the concept of solution, solvent, solute; solution, the nature and application of the emulsion; the temperature of the solution when the substance dissolves in water; the concept of the solute mass fraction, meaning and calculation; Solution dilution, concentration, preparation and other aspects of the calculation; involved in the chemical reaction process solute mass fraction calculation. Proposition hot spots in the solution of the characteristics and applications, contact production, practical problems of life, as well as covering multiple knowledge points within and outside the subject integrated questions. There are multiple types of questions, fill in the blank questions, short answer questions. Below we will combine several test questions on the solution problem solving method.