化学是一门以实验为基础的学科,是中学阶段的一门必修课,它是古往今来无数中外化学家的化学科学研究和实践的成就,它编入了一些化学基本概念、基础理论、元素化合物知识、化学反应的基本类型、无机物的分类及相互间的关系等知识;它充满了唯物辩证法原理和内容,它介绍了许多科学家的优秀品 Chemistry is an experiment-based subject. It is a compulsory subject in secondary school. It is the achievement of numerous chemical research and practice by Chinese and foreign chemists from ancient to modern times. It incorporates some basic concepts of chemistry, basic theory, elemental compounds Knowledge, the basic types of chemical reactions, the classification of inorganic substances and the relationship between mutual knowledge; it is full of materialist dialectics principles and content, which introduced many scientists outstanding