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电化学知识一直是历届高考考查的热点,也是我的学生学起比较困难的知识点。电化学知识有很强的综合性,试题可联系化学实验现象的判断与分析、氧化还原反应、化学计算等内容,还与生产、生活(如金属的腐蚀和防护、电镀废液的危害与环保等)、新技术与新科技(新型电池)等问题联系。在高考考题主要以选择题或填空题的形式出现。通过本人对高考试题分析,发现电化学在高考中主要考查如下几个方面内容原电池主要考查点:1、原电池反应的特点及正负极反应的特征;2、
Electrochemical knowledge has always been the focus of previous college entrance examination, but also my students learn more difficult knowledge. Electrochemical knowledge has a very strong comprehensive, questions can be linked to the chemical test the phenomenon of judgment and analysis, oxidation and reduction reactions, chemical calculations and other content, but also with the production, life (such as metal corrosion and protection, electroplating waste hazards and environmental protection Etc.), new technology and new technology (new battery) and other issues. In the college entrance examination questions mainly in the form of multiple choice questions or blank questions. Through my analysis of college entrance examination papers, found that the electrochemical test in the college entrance examination mainly in the following aspects: Primary battery test points: 1, the characteristics of the original battery reaction and the characteristics of positive and negative reactions; 2,