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在初中化学课本第七章讨论到“重要的几种酸、硷、氧化物和盐”。通过前面六章教材的学习,使学生了解化学是研究物质及其变化的课程。根据物质构成的变化,去判定物质的转变;由分子及原子观点说明物质的结构;又对分子原子学说,基本的化学概念和定律等予以适当的讨论,也就是让学生把化学课程的基础理论部分,首先由感性到理性地建立起来。初中化学课本前六章的教材内容,还包括了空气、氧、氢、水和溶液,这是具有两种意义的;一方面因为这些教材是属于应用最广的物质,在初中化学中必须讲述,另一方面的意义是通过这
In the seventh chapter of junior high school chemistry textbook, we discuss “several important acids, bases, oxides and salts”. Through the first six chapters of textbook learning, to enable students to understand chemistry is the study of material and its changes in the course. According to changes in material composition, to determine the material changes; from the molecular and atomic point of view that the material structure; and molecular atomic theory, basic chemical concepts and laws to be properly discussed, that is, to enable students to the basic theory of chemical courses Part, first of all, from the emotional to rational established. The contents of the texts of the first six chapters of junior high school chemistry textbooks, including air, oxygen, hydrogen, water and solution, have two meanings. On the one hand, because these textbooks belong to the most widely used substances, they must be described in junior middle school chemistry On the other hand, the meaning is through this