What is the Cation to Anion Ratio for Ionic Compounds?

[Lou1024]

Hey everyone,
Im pretty terrible in Chemistry, and I am stuck on something that's probably easy and obvious:
Determine the ratio of cations to anions for the following ionic compounds.
a. Potassium chloride.
b. Calcium Fluoride.
c. Aluminum oxide
d. calcium oxide.
e. Strontium chloride.

If someone could provide me with some information on how I can come about the answers, It would be greatly appreciated.

Thanks,
Lou

 

[mrjeffy321]

It would probably help to write out the chemicals like this instead,
KCl
CaF2
Al2O3
CaO
SrCl2

Cations have a positive charge, anions have a negative charge, over all, the compound has a neutral charge.

 

[Lou1024]

Yeh thanks, I think I figured it out.

 

[GCT]

yeah, just balance out the charges