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一、化学反应原理常考内容化学反应原理相关知识是中学化学基本核心内容之一,包括元素及其化合物相互转化、化学反应与能量的关系、电化学反应原理、化学平衡、电离平衡和水解平衡、溶质的溶解度和难溶盐的溶解平衡、化学反应速率、方向和限度等,内容多,要求层次较高,结合图形和途径设计考题,有效地考查了学生获取信息的能力,分析、比较、概括、归纳、推理的能力,具有较好的区分度,在各种考查中成为常考题型之一,下面举例说明此题型的命题思想和解题策略。
I. Principles of Chemical Reactions Exam Contents Chemical Reaction Principles The related knowledge is one of the basic contents of chemistry in middle schools, including the mutual transformation of elements and their compounds, the relationship between chemical reaction and energy, the principle of electrochemical reaction, chemical equilibrium, ionization equilibrium and hydrolysis equilibrium. Solubility of solute and dissolution balance of insoluble salts, chemical reaction rate, direction and limit, etc., with many contents and higher requirements, combined with graphic and path design questions, effectively examining students’ ability to obtain information, analysis, comparison, The ability to generalize, summarize, and reason, has a good degree of distinction, and has become one of the frequently asked questions in various examinations. The following examples illustrate the propositional thinking and problem solving strategies of this type of question.