Question

Write formulas for compounds formed from these pairs of ions: a. Ba2+, S2- B. Li+, O2-
C. Ca2+, N3- D. Cu2+, I-

Answer 1

BaS2, Li2O, Ca3N2, CuI2

You need to look at this and balance the charges so they are zero.

Answer 2

hows what?

Answer 3

Sorry my iPad is messing up. How do you balance the charges?

Answer 4

You got to look at the charges i.e Ba has a charge of 2+ and S has a charge of 2- so they go together in a one to one ratio. I messed up uptop because i didn't see the charge on s and picked the wrong one.

Answer 5

Thank you

Answer 6

no problem good luck