Question

Na-->NaOH-->NaHCO3-->Na2CO3-->Na2SO4-->NaCl
HELP ME PLEASE!!!!

Answer 1

2Na+2H2O=2NaOH+H2
NaOH+CO2(избыток)=NaHCO3
NaHCO3+NaOH=Na2CO3+H2O
Na2CO3+H2SO4=Na2SO4+H2O+CO2
Na2SO4+BaCl2=BaSO4+2NaCl

Answer 2

2Na+ 2H₂O = 2NaOH + H₂
NaOH+CO₂(избыток)=NaHCO₃
2NaHCO₃+ t 60⁰-200⁰C=Na₂CO₃ + CO₂ + H₂O
Na₂CO₃ + H₂SO₄ = Na₂SO₄ + H₂O + CO₂
Na₂SO₄ + BaCl₂= 2NaCl + BaSO₄ (осадок)