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化学是研究物质的组成、结构、性质以及变化规律的基础自然科学。初中化学研究的是人类通过实践活动总结出来的已知规律，因而它是一门基础学科。把握这一本质，对教师来讲至关重要，既可以做好化学基本知识的普及工作，以提高学生的文化科学素养，还可以通过化学课的教学...
Chemistry is the basic science that studies the composition, structure, properties, and laws of change. Chemistry in junior high school studies the known laws that humans have learned through practical activities. Therefore, it is a basic discipline. Grasping this essence is of the utmost importance to teachers. It can not only do a good job in popularizing basic knowledge of chemistry in order to improve students’ cultural and scientific qualities, but also can teach through chemistry classes...