化学基本概念是化学“双基”的重要组成部分，它又是化学基本理论、元素及化合物知识、实验和计算技能的基础。因此，学好化学基本概念是学好化学的基础，对化学基本概念掌握得好坏，直接影响到学习化学的质量。要复习好初中化学，首先就应该重视和加强化学基本概念的复习。现 The basic concept of chemistry is an important part of the chemical “dual basis”, which is the basis for the basic theory of chemistry, knowledge of elements and compounds, and experimental and computational skills. Therefore, learning the basic concept of chemistry is the foundation of good chemistry. The mastery of basic concepts of chemistry directly affects the quality of learning chemistry. To review the chemistry of junior middle school, we must first pay attention to and strengthen the review of the basic concept of chemistry. Now