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一、背景化学平衡的概念是中学化学中的重要理论之一,化学平衡状态的特征是建立化学平衡概念的基础,而此概念常与学生的先前概念相干扰,如心理平衡,能量平衡,连通器的压强平衡等,如何帮助学生从先前概念中提炼必要相关的“平衡”将为正确理解应用化学平衡打下良好的基础,应纳入教学范畴。本节课内容选自上海科技版高中一年级第二学期第六章第二节第一课时:可逆反应中的化学平衡。
I. Background The concept of chemical equilibrium is one of the important theories in secondary chemistry. The characteristic of chemical equilibrium state is the basis for establishing the concept of chemical equilibrium, which often interferes with students’ previous concepts such as psychological balance, energy balance, connectivity How to help students to extract the necessary relevant “balance” from the previous concepts will lay a good foundation for correct understanding of the application of chemical balance and should be included in the teaching category. This class is selected from the Shanghai Science and Technology version of the first semester of the second semester of the second quarter of the first two hours: the chemical reaction reversible chemical equilibrium.