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化学计算是借助于用数学计算方式,从量的方面加深对化学概念和原理的理解,进一步掌握物质的性质及其变化规律,培养化学计算的基本技能,发展思维,提高分析问题和解决问题的能力。一、考查重点 1.高考化学计算命题特点化学计算是中学化学学习的重要内容,也是高考命题考查的重点之一。高考试题中化学计算内容占15％,含有计算因素的试题大约占试卷总分的1/3。分析近几年来的高考化学计算试题,大致有以下几个特
Chemical calculation is the use of mathematical calculation methods to deepen the understanding of chemical concepts and principles from quantitative aspects, further grasp the nature of substances and their changing rules, develop basic skills in chemical calculations, develop thinking, improve analysis problems and solve problems. ability. First, the examination key 1. College entrance examination chemistry calculation proposition characteristics The chemical calculation is an important content of middle school chemistry study, but also one of the focuses of the college entrance examination proposition examination. The content of chemical calculations in the high-test questions accounted for 15%, and the questions with calculation factors accounted for about 1/3 of the total scores of the test papers. Analyze the chemistry test questions of the college entrance examination in recent years, roughly the following special