2Na+2H2O=2NaOH+H2
2NaOH+H2S=Na2S+2H2O
Na2S+BaCl2=2NaCl+BaS
2NaCl+BaSo4=BaCl2+Na2SO4
Na2So4+Ba(OH)2=BaSo4+2NaOH
2Na+2H2O=2NaOH+H2
2NaOH+H2S=Na2S+2H2O
Na2S+BaCl2=2NaCl+BaS
2NaCl+BaSo4=BaCl2+Na2SO4
Na2So4+Ba(OH)2=BaSo4+2NaOH