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质量守恒定律是初中化学中的基本定律,也是化学进行定量运算的基础,因而也是每年中考的必考知识点。中考中一般是在选择题中考查质量守恒定律的概念,也在非选择题中考查质量守恒定律的应用。本文从对质量守恒定律的概念考查和质量守恒定律的应用考查两个方面进行例析。一、质量守恒定律概念考查例析质量守恒定定律的内容是在化学反应中,参加化学反应的各物质的质量总和等于反应后生成的
The law of conservation of mass is the basic law of junior high school chemistry, but also the basis of quantitative calculation of chemistry. In the senior high school entrance examination is generally in the multiple choice examines the concept of the law of conservation of mass, but also in the non-choice examines the application of the law of conservation of mass. This article analyzes the concept of mass conservation law and the application of the law of conservation of mass in two aspects. First, the concept of conservation of mass conservation law to analyze the contents of the law of conservation of mass in the chemical reaction, participate in the chemical reaction of the total mass of the material equal to the reaction generated