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氧化一还原反应方程式的配干是中学化学的基本技能之一，同时也是中学化学教学的重点和难点。对于反应物中含有中学阶段不常见价态的氧化一还原方程式的配平，学生往往错漏百出，甚至束手无策。因此掌握氧化一还原反应方程式的配平方法和技巧就显得特别重要。要想掌握氧化一还
One of the basic skills of middle school chemistry is the coordination of the oxidation-reduction equation. It is also a key and difficult point in chemistry teaching in middle schools. For the trim of the oxidation-reduction equation with uncommon valences in the secondary school in the reaction, the students often missed out on the balance and were even at a loss. Therefore, it is particularly important to master the trimming methods and techniques of the oxidation-reduction equation. To master the oxidation also