I would start with writing the chemical formulas. For instance, barium bromide BaBr2
it has three ions.
I will be happy to critique your work.
Select all ionic compounds in which the number of anions present is three.
ammonium sulfite
ammonium perchlorate
cadmium phosphate
ammonium iodate
ammonium sulfate
barium bromide
none
How can u tell???
2 answers
How about doing your own homework