1. K3P
2. ScN
3. OsBr2
4. P3O5
5. Sn3(PO4)2

6. (NH4)2SO4

7. PbO
8. Al(OH)3

9. CF3

10. SnO2
11. CO
12. Ni2O3
13. HCl
14. AgClO3

15. Cl2
Part B: Writing Formulas for Ionic and Covalent Compounds


1. silver sulphite
2. gold I flouride
3. iron II oxide
4. Magnesium phosphoride

5. strontium carbonate

6. hydrogen gas
7. Boron Iodide

8. ammonium dichromate

9. iron III phosphide
10. Aluminum Nitrate

You normally name the bounding metal first, then you will name the other species in the fomula. All of the compounds you have there look simple all you need to know is:

If the element is on it's own, it's nearly always an -ide, chloride, phosphide, nitride, etc.

If the element is with an O, then it's an -ate, chlorate, flourate, phosphate, etc.

OH is a hydroxide.

For some of these metal you need to work out the oxidisation state. You should know how to do this from your class.

As for working out the formulae, you need to wrk out the oxidisation states etc again.

We are NOT going to do all this for you, but if you have a more specific question, please feel free to ask.