Decide whether each of the following is water-soluble. If soluble tell what ions are produced.

A. Na2CO3
B. CuSO4
C.NiS
D.BaBr2
I put soluble for A, B, and D. But i can not figure out the ions that are produced??

2 answers

JuCt ionize them.
Na2CO3 ==> 2Na^+ + CO3^-2
CuSO4 ==> Cu^+2 + SO4^-2
BaBr2 ==> ?? + ??
Ba^+2 + 2 Br^-