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化学概念是用准确严谨的语言高度概括出来的，是化学学科知识的基础。化学概念常包括定义、原理、反应规律等，其中每个字、词、每一句话，每一个注释都有其特定的含义，以保持概念的完整性和科学性，针对初中学生阅读和理解能力的实际和特点，教师应首先重视化学概念的教学，?
The concept of chemistry is highly summarized in an accurate and precise language and is the basis of knowledge in chemistry. Chemical concepts often include definitions, principles, reaction laws, etc. Each word, word, sentence, and comment has its own specific meaning, so as to maintain the concept of completeness and scientificity, aiming at junior high school students’ ability to read and understand. The facts and characteristics of the teachers should first emphasize the teaching of chemistry concepts.