这部分知识是对前面所学知识的延续和深化,特别是前面仅从宏观方面所解释的那些化学现象,在这里,可从微观角度进行更深一层的理解,亦为以后学好化学知识提供了理论基础,因此,学习好该知识点极为重要. This part of the knowledge is a continuation and intensification of what has been learned in the past, especially those chemical phenomena that were explained only from the macroscopic aspect. Here, a deeper level of understanding can be obtained from a microscopic perspective, and it also provides a better understanding of chemistry in the future. Theoretical basis, therefore, learning this knowledge point is extremely important.