论文部分内容阅读
电化学是高中化学内容的重点之一,也是高考的知识点之一笔者结合多年的教学经验和对高考题的分析,对电化学的几点体会做一小结,希望对教学有所帮助。一、原电池我们在电化学教学中,老师应明确告诉学生:原电池反应是自发的氧化还原反应。在满足形成原电池的条件(两电极、电解质溶液、闭合)下,先正确地写出自发的氧化还原反应方程式(原电池反
Electrochemistry is one of the key high school chemistry content, but also one of the knowledge points of the college entrance examination combined with many years of teaching experience and analysis of the college entrance examination questions, a few summary of electrochemical experience, hoping to help teaching. First, the original battery We electrochemical teaching, the teacher should be clear to tell students: the original battery reaction is a spontaneous oxidation-reduction reaction. Under the condition of forming the primary cell (two electrodes, electrolyte solution, closed), the spontaneous redox reaction equation is correctly written (primary cell reverse