化学平衡是高中化学教学中的难点。同一个化学平衡状态既可以从正反应方向开始,也可以从逆反应方向开始,还可以从两个方向同时开始。由此衍生出了等效平衡。大多教学参考资料都分为了三种等效平衡类型,笔者认为更加确切地应当是一种等同平衡和两种等效平衡。 Chemical equilibrium is a difficult point in high school chemistry teaching. The same chemical equilibrium can start either in the forward or reverse direction and simultaneously in both directions. The resulting equivalent balance. Most of the teaching reference materials are divided into three types of equivalent balance, I believe that more exactly should be an equal balance and two equivalent balance.