Question

Na--NaOH--Na2SO4--NaCl--Na

Answer 1

1. 2Na + 2H2O = 2NaOH + H2
2. 2NaOH + H2SO4 = Na2SO4 + 2H2O
3. Na2SO4 + BaCl2 = BaSO4 + 2NaCl
4. 2NaCl (электролиз расплава)= 2Na + Cl2

Answer 2

2Na+2H2O=2NaOH+H2 2NaOH+H2SO4=Na2SO4+2H20 Na2SO4+BaCl2=2NaCl+BaSO4 2NaCl(электролиз расплава) = 2Na + Cl2