herroo guys,
I'm having a bit of trouble with identifying which ions to eliminate in net ionic equations
eg. BaCl2 + Na2SO4--> BaSO4 +NaCl
Ba2+ + 2Cl- + 2Na+ + SO4(2-) --> Ba2SO4(s) + Na+ + Cl-
do i cancel out the Cl- and Na+ because they have the same valencies on both sides? Or do i leave...