Na-NaOH-Ch3 COONa-Ch4-Co2-Na2 CO3-NaHCo3
2Na+2H2O=2NaOH+H2
NaOH+CH3COOH=CH3COONa+H2O
CH3COONa+NaOH=Na2CO3+CH4
CH4+2O2=CO2+2H2O
CO2+2NaOH=Na2CO3+H2O
Na2CO3+CO2+H2O=2NaHCO3