1. We’ll go over this example in video form.

2. We’re asked to name the compound with the formula NH 4 NO 3 Name the compound with the formula NH 4 NO 3

3. We see that NH 4 NO 3 has 3 elements (click) nitrogen, hydrogen and oxygen. Any ionic compound with more than two elements must contain a polyatomic ion. NH4NO3NH4NO3 3 Elements Name the compound with the formula NH 4 NO 3

4. So we look on the ion table for polyatomic ions in the formula NH 4 NO 3 and we find there are two polyatomic ions NH 4 NO 3 Name the compound with the formula NH 4 NO 3

5. NH4 is from the ammonium ion, NH4 plus NH 4 NO 3 Name the compound with the formula NH 4 NO 3

6. And NO 3 is from the nitrate ion, NO 3 minus NH 4 NO 3 Name the compound with the formula NH 4 NO 3

7. So NH4NO3 is made up of the ammonium ion and the nitrate ion. Both of these are polyatomic ions, and their names do not change when they form a compound. Name the compound with the formula NH 4 NO 3 ammonium nitrate

8. So the name is simply ammonium (click) Name the compound with the formula NH 4 NO 3 ammonium nitrate

9. nitrate Name the compound with the formula NH 4 NO 3 ammonium nitrate

10. Polyatomic ions have only one possible charge each, so there are never any roman numerals after the names of polyatomic ions. Name the compound with the formula NH 4 NO 3 ammonium nitrate No Roman Numerals

11. So the final answer is, (click) the name of the compound with the formula NH4NO3 is ammonium nitrate. Name the compound with the formula NH 4 NO 3 ammonium nitrate