“敬礼”模型构建在化学教学中的运用——以强酸制弱酸反应产物判断为例

Application of “Saluting” Model Construction in Chemistry Teaching—Taking the Judgement of the Reaction Products of Strong Acid to Weak Acid as an Example

摘要: 通过建构“敬礼”模型，直观表征“强酸制弱酸”类型复分解反应的原理，以快捷地判断某酸与某盐能否反应，同时判断反应产物，轻松书写反应方程式，尤其遇到多元酸参与的反应，运用模型方便快捷。

Abstract: Through the construction of “saluting” model, the principle of strong acid to weak acid type of dou-ble decomposition reaction is intuitively characterized, so as to quickly judge whether an acid and a salt can react, at the same time judge the reaction product, easily write the reaction equation; especially when polyacid is involved in the reaction, the model is convenient and fast.