论文部分内容阅读
一、复习要求 1.掌握有关反应物、生成物质量的计算. 2.掌握含一定质量杂质(杂质不参加反应) 的反应物或生成物的计算. 3.掌握有关化学方程式与溶质的质量分数 简单综合的计算. 二、主要内容提示 1.根据化学方程式的计算是从量的方面来 研究物质变化的,正确理解化学方程式的意义
First, review requirements 1. Grasp the calculation of the reactants and product quality. 2. Master the calculation of reactants or products containing a certain amount of impurities (impurities do not participate in the reaction). 3. Grasp the mass fraction of chemical equations and solute Comprehensive calculations. Second, the main contents of the prompts 1. According to the calculation of the chemical equation is to study the material changes from the quantitative aspects, the correct understanding of the meaning of the chemical equation