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一般而言,电解质之间的反应都在水溶液中进行,故而复分解反应的反应条件(水)在反应方程式中可以略而不写,不致引起什么误解。但是,电解质的电离情况则稍有不同,若写电离方程式时将电离条件也略而不写或强调不够,容易使初三学生甚至部分高中学生产生一些误解。请看下列数例: 1.由于课本上的电离方程式都没有注明条件,致使不少初三学生容易产生“电解质通过电流的时候发生电离”的错误观念。如果课本上把电离方程式写为:
In general, the reactions between the electrolytes are carried out in an aqueous solution. Therefore, the reaction conditions (water) of the metathesis reaction can be slightly omitted in the reaction equation, and no misunderstanding is caused. However, the ionization of the electrolyte is slightly different. If the ionization equation is written, the ionization conditions will be slightly less than not enough to write or emphasize enough, which makes it easy for junior high school students and even some high school students to have some misunderstandings. Please see the following examples: 1. Because the textbook’s ionization equation is not specified conditions, resulting in a lot of junior students are prone to the “electrolyte ionization when passing through the current” misconception. If the textbook writes the ionization equation as: