《化学教育》一九八○年第二期发表的《对氧化数法配平化学方程式的一点改进》一文(以下简称《改进》)提供的方法(我称为“分数系数”法),是一个很值得注意的好方法。该方法理论基础坚实,方法简捷快速,易于掌握。但是,由于该文叙述的比较简略,选例代表性也似嫌不够,致使该法适用范围受到一定局限。为此,笔者结合几年来应用该法的教学实践,提出几点补充意见。 The method provided by Chemistry Education, published in the second issue of 1980, “A Little Improvement to the Chemical Equation of Oxidation” (hereinafter referred to as “improvement”) (I call the “fractional factor” method) is a It is a good way to note. The method is based on a solid theoretical foundation and is simple, quick and easy to master. However, due to the relatively simple narration of the article, the representation representativeness may not be enough, which limits the scope of application of the law. To this end, the author combined with the teaching practice of the law over the past few years, made a few additional comments.