学生学习“化学平衡”一章内容时,往往感到困难,因为该章节知识理论性较强,抽象的问题较多,大多为学生难以接受不易想象、不易理解的知识.根据教学实际,从教、学、练、考的需求出发,现总结如下几个方面阐述该章节重、难点知识,指导和帮助学生学好本章内容. When students study the chapter on “chemical balance”, they often find it difficult because the chapter has more theoretical knowledge and more abstract issues. Most of them are difficult for students to accept knowledge that is difficult to imagine and understand. According to the actual teaching, they learn from teaching and learning. Demand for training, training, and examinations are summarized as follows: The following sections describe the chapter’s heavy and difficult knowledge, guide and help students learn the contents of this chapter.