A、B、C、D、E、F是中学化学教材中六种常见的物质，它们之间有如图所示的相互转化关系（反应条件及部分产
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| A、B是家庭厨房中常用调味品的主要成分，且为有机物，二者应为CH 3 COOH和C 2 H 5 OH，B的相对分子质量比A大14，可知A为C 2 H 5 OH，含有的官能团为羟基， B为CH 3 COOH，E是密度最小的气体，应为H 2 ，则F为Na，C为H 2 O，D为CH 3 COOC 2 H 5 ，反应①的化学方程式化为CH 3 COOH+C 2 H 5 OH CH 3 COOC 2 H 5 +H 2 O， 故答案为：钠；羟基；CH 3 COOH+C 2 H 5 OH CH 3 COOC 2 H 5 +H 2 O． |
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