NaHCO3+CH3COOH=CH3COONa+H2O+CO2↑
醋CH3COOH最后有-COOH,有酸的通性,在水中电离出的是CH3COO-和H+,H+与NaHCO3中H+、CO3 2-结合生成H2O和CO2,气体逸出,剩下CH3COO-与Na+结合为CH3COONa醋酸钠