题目

(6分)写出下列反应的化学方程式：(1)实验室制乙烯                                                   。（2）苯酚钠溶液中通入CO2                                                 。(3)丙酸和碳酸钠反应                                                 。  答案： （1）（2）略（3）2CH3CH2COOH+Na2CO3=2CH3CH2COONa+ H2O + CO2↑解析: 

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