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在有机物参加的化学反应中,发生氧化还原反应时方程式的配平,学生往往感到难于着手,比较困难,主要是有机物中碳元素的化合价容易出错,就此问题进行分析,使学生的学习能变的容易。原理:化合价升高总数等于化合价降低总数。难点:有机物化合价的确定。
In chemical reactions where organic matter is involved, the redistribution of the equation during the redox reaction often makes it difficult for students to start the process. It is difficult for the students to make mistakes because the valences of carbon atoms in the organic matter are prone to error. Therefore, students’ learning can be easily changed . Principle: The total increase in valence is equal to the total valence reduction. Difficulties: Determination of organic valence.