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一、引言反应方程式的写法与配平是学习普通化学的学生必须掌握的基本功之一,这个问題初看起来似乎人人都知道,沒什么好谈的了。实际并非如此,从我们的教学过程和最近的调查研究中发现: (1)許多同学都苦于不知道到底那些反应可写成离子反应式,那些又不能。离子反应式中又有那些物质可写成离子,那些不能。 (2)由于未掌握各种类型的反应式的配平原则,
I. INTRODUCTION The writing and balancing of reaction equations is one of the basic skills that ordinary students in chemistry must master. As early as this issue seems, everyone knows that there is nothing to talk about. This is not really the case. From our teaching process and recent surveys, we found: (1) Many students are struggling with ignorance of the reactions that can be written as ion-reactive and those that can not. Ionic Reactivity There are those substances can be written as ions, those can not. (2) Due to the fact that they have not mastered the principle of balancing all types of reactions,