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无机物间的相互反应关系和互变规律是初中化学第五章的核心内容,也是第一、二、三章中学到氧气、氢气、碳及其重要化合物等元素化合物知识的条理化和系统化。初学化学的同学,必须较好地掌握无机物的基本变化规律,能正确地书写有关的化学方程式,从而为进一步学习化学打下坚实的基础。笔者从教学实践中体会到,将初中化学
The mutual reaction and interconversion laws between inorganic substances are the core content of Chapter 5 of Junior Middle School Chemistry. It is also the first, second and third chapters to learn the rules and systematization of the knowledge of elemental compounds such as oxygen, hydrogen, carbon, and their important compounds. . Students of novice chemistry must master the basic laws of inorganic materials and correctly write the relevant chemical equations, thus laying a solid foundation for further study of chemistry. The author learned from the teaching practice that the junior high school chemistry