过去认为配平氧化数未发生变化的氢氧原子是配平氧化还原反应方程式的难点,对配平这类氢氧原子,很长时间一直是采用经验方法。近些年国内外出版的化学教材对配平这类氢氧原子的方法作了较好的改进,但如何用一个数学模型抽象、简约、准确地表达出这 In the past that the balance of oxidation number of hydrogen atoms is not difficult to balance the redox reaction equation, the balance of such hydrogen and oxygen atoms, for a long time has been the use of empirical methods. In recent years, the chemistry teaching materials published at home and abroad have made a good improvement on the method of grading these hydrogen and oxygen atoms. However, how to use a mathematical model to abstract, concisely and accurately this