2Na+2H2O=2NaOH+H2
NaOH + CO2=NaHCO3
NaHCO3 + NaOH(конц. ) = Na2CO3 + H2O
Na2CO3+H2SO4=Na2SO4+CO2+H2O
Na2SO4+BaCl2=BaSO4+2NaCl
2NaCl=2Na+Cl2
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NaOH+CO2=NaHCO3
NaHCO3+NaOH=Na2CO3+H2O
Na2CO3+H2SO4=Na2SO4+CO2+H2O
Na2SO4+BaCl2=BaSO4+2NaCl
2NaCl ->2 Na+Cl2
2Na+2H2O=2NaOH+H2
NaOH + CO2=NaHCO3
NaHCO3 + NaOH(конц. ) = Na2CO3 + H2O
Na2CO3+H2SO4=Na2SO4+CO2+H2O
Na2SO4+BaCl2=BaSO4+2NaCl
2NaCl=2Na+Cl2