电化学知识是中学化学的重点内容之一,其中电极反应式的书写能反映出学生对电化学知识的掌握程度。有关电极反应知识的考查已成为每年高考的重要内容之一,因此下面就从电极反应式的书写方法、书写步骤及应注意的问题等方面,对依据总反应式如何书写电极反应式做以归纳小结。1.从氧化还原的角度认识总反应,分析电子转移 Electrochemical knowledge is one of the key contents of chemistry in middle school, in which the writing of electrode reaction can reflect students’ mastery of electrochemical knowledge. The examination of electrode reaction knowledge has become one of the most important parts of college entrance examination every year. Therefore, we will summarize how to write the electrode reaction formulas based on the total reaction from the aspects of writing method, writing procedure and problems that should be noticed. summary. 1. Know the total reaction from a redox perspective and analyze the electron transfer