Barium Chloride and Sodium Sulphate = 2Na + BaSO4
Na+ and Cl- don't react, Only SO42- and Ba2+ do so by forming precipitate: SO42- + Ba2+ --> (BaSO4)s
BaCl2 + Na2SO4 --> BaSO4 + 2NaCl
Ooh. Somebody doesn't like doing their chem homework. Luckily I just happened to do that exact same equation. 1 BaCl2 +1 Na2S --> 2 NaCl(Salt! :D) +1 BaS
Na2SO4+BaCl2 --> 2NaCl+BaSO4
Ba2+ + [2Cl- + 2Na+] + SO42- --> BaSO4 + [2Cl- + 2Na+] Ba2++ SO42- --> BaSO4