氧化还原反应是高中化学教材的开篇内容.是中学化学中的重要理论知识之一,也是学习中的一个难点,在历年高考中常常涉及到该内容.所以同学们一定要理解和掌握反应的不 Redox reaction is the opening content of high school chemistry textbooks. It is one of the important theoretical knowledge in middle school chemistry, and it is also a difficulty in learning. This content is often involved in the college entrance examination over the years. Therefore, the students must understand and master the reaction.