分类配平氧化——还原反应方程式

Balancing Oxidization-Reduction Equations in Various Ways

配平氧化———还原反应方程式的方法很多,但每一种方法都有其局限性.教学实践证明,对氧化———还原反应方程式按化合价变化的元素种类为一种、两种和多种分成三类,每一类分别用“减除法”、“化合价升降法”和“待定系数法”三种不同方法配平时,既快速准确,配平面又广.

There are various ways to balance oxidization- reduction equations. However, there are limitations. It has been proved by teaching practice that there are three kinds of oxidization - reduction equations which are determined by the elements changing according to valence, and each can be balanced by ways of deducing, valence up - and - downs and coefficrent. Not only are these meth- ods quick and accurate, they can be applied to many equations.