书写离子方程式时,根据离子反应发生的条件,常常要借助于课本中的“部分酸、碱和盐的溶解性表”(下称“表”)。所以,“表”给离子方程式的书写提供了一定的依据,带来了一定的方便,但也对离子方程式的书写产生了一定的误导,出现了不少问题。为了防止这类问题的出现,下面针对实际教学中问题突出的几个方面讨论如下。 When writing an ion equation, depending on the conditions under which ion reactions occur, it is often with the aid of the textbook “Partial Acid, Alkali, and Salt Solubility Tables” (“Table”). Therefore, “Table ” provides a certain basis for the formulation of the ion equation, bringing some convenience, but also some misleading the ion equation writing, there have been many problems. In order to prevent the emergence of such problems, the following aspects of the actual teaching problems highlighted in the following discussion.