实验是化学这门学科中非常重要的组成部分,关系着许多化学理论的得出以及验证。一些化学教师在教学过程中,发现一些章节的实验内容如果按照教材上所说的步骤进行的话,实验现象及结果与理论会出现较大的偏差,容易误导学生。针对这种情况,我们可以在原有实验内容的基础上进行适当的改进,让实验现象 Experiments are a very important part of the chemistry discipline and relate to the derivation and verification of many chemical theories. Some chemistry teachers in the teaching process, found that some chapters of the experimental content, according to the textbook, said steps, the experimental phenomenon and the results and the theory there will be a greater deviation, easy to mislead the students. In view of this situation, we can make the appropriate improvements on the basis of the original experimental content, so that the experimental phenomenon