氧化还原反应是高中化学教材中的一个重要化学概念,是重点也是难点,是历年高考的热点,每年都以不同形式出现,在高中教学中应解决好氧化还原反应的实质,教给学生解这类题的方法与技巧。 Redox reaction is an important chemical concept in high school chemistry textbook. It is also an important and difficult point. It is a hot spot in the college entrance examination over the years and appears in different forms every year. In the high school teaching, the essence of the redox reaction should be solved and taught to students Methods and techniques of the class questions.