Na2CO3+H2O=NaHCO3 +NaOH(可逆符号)
CH3(CH2)16COOCH2
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CH3(CH2)16COOCH +3NaOH→3CH3(CH2)16COONa+CH2OHCHOHCH2OH
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CH3(CH2)16COOCH2
上面就是用线把三个C连起来