论文部分内容阅读
元素符号，化学式及化学方程式是学生学习化学入门必须熟练掌握的三要素，而前二者又是正确书写方程式的符号基础，而质量守恒定律即是正确书写化学方程式的理论基础也是进行计算的依据，它直接反映了参加化学反应的各物质及生成的各物质之间的质量关系。熟练掌握质量守恒...
Elemental symbols, chemical formulas and chemical equations are the three essential elements that students must be familiar with when learning chemistry begins. The first two are the symbolic basis for correctly writing the equations. The law of conservation of mass is the theoretical foundation for correctly writing chemical equations and the basis for calculations. It directly reflects the quality relationship between the substances participating in the chemical reaction and the various substances generated. Proficient in quality conservation...