Question

practice: ionic naming race
complete one box at a time. you must come up and get your box checked off before you can move on to the
next box. make corrections and continue until you finish the race!

1. naf
2. srs
3. cu₂s
4. k₂co₃
5. cacl₂
6. be(oh)₂
7. zni₂
8. mg₃(po₄)₂
9. nh₄i
10. mn(no₃)₃
11. fepo₄
12. coco₃
13. potassium fluoride
14. ammonium sulfate
15. magnesium iodide
16. copper (ii) sulfate
17. aluminum phosphate
18. lead (ii) nitrate
19. cobalt (ii) sulfide
20. mercury (i) nitrate
21. copper (ii) carbonate
22. iron (iii) oxide
23. lithium nitrate
24. lead (iv) sulfate

Explanation:

Step1: Name ionic compounds (1-12)

Use cation (metal/ammonium) name + anion name; for variable-charge cations, use Roman numerals to match charge balance.

1. $\text{NaF}$: Sodium fluoride
2. $\text{SrS}$: Strontium sulfide
3. $\text{Cu}_2\text{S}$: Copper (I) sulfide (Cu⁺ balances S²⁻: $2(+1) + (-2)=0$)
4. $\text{K}_2\text{CO}_3$: Potassium carbonate
5. $\text{CaCl}_2$: Calcium chloride
6. $\text{Be(OH)}_2$: Beryllium hydroxide
7. $\text{ZnI}_2$: Zinc iodide
8. $\text{Mg}_3(\text{PO}_4)_2$: Magnesium phosphate
9. $\text{NH}_4\text{I}$: Ammonium iodide
10. $\text{Mn(NO}_3\text{)}_3$: Manganese (III) nitrate (Mn³⁺ balances 3 NO₃⁻: $(+3) + 3(-1)=0$)
11. $\text{FePO}_4$: Iron (III) phosphate (Fe³⁺ balances PO₄³⁻: $(+3)+(-3)=0$)
12. $\text{CoCO}_3$: Cobalt (II) carbonate (Co²⁺ balances CO₃²⁻: $(+2)+(-2)=0$)

Step2: Write formulas (13-24)

Balance cation and anion charges to get neutral compounds.

1. Potassium fluoride: $\text{KF}$ (K⁺ + F⁻)
2. Ammonium sulfate: $(\text{NH}_4\text{)}_2\text{SO}_4$ (2 NH₄⁺ balances SO₄²⁻)
3. Magnesium iodide: $\text{MgI}_2$ (Mg²⁺ balances 2 I⁻)
4. Copper (II) sulfate: $\text{CuSO}_4$ (Cu²⁺ balances SO₄²⁻)
5. Aluminum phosphate: $\text{AlPO}_4$ (Al³⁺ balances PO₄³⁻)
6. Lead (II) nitrate: $\text{Pb(NO}_3\text{)}_2$ (Pb²⁺ balances 2 NO₃⁻)
7. Cobalt (II) sulfide: $\text{CoS}$ (Co²⁺ balances S²⁻)
8. Mercury (I) nitrate: $\text{Hg}_2(\text{NO}_3\text{)}_2$ (Hg₂²⁺ balances 2 NO₃⁻)
9. Copper (II) carbonate: $\text{CuCO}_3$ (Cu²⁺ balances CO₃²⁻)
10. Iron (III) oxide: $\text{Fe}_2\text{O}_3$ (2 Fe³⁺ balances 3 O²⁻)
11. Lithium nitrate: $\text{LiNO}_3$ (Li⁺ balances NO₃⁻)
12. Lead (IV) sulfate: $\text{Pb(SO}_4\text{)}_2$ (Pb⁴⁺ balances 2 SO₄²⁻)

Answer:

1. Sodium fluoride
2. Strontium sulfide
3. Copper (I) sulfide
4. Potassium carbonate
5. Calcium chloride
6. Beryllium hydroxide
7. Zinc iodide
8. Magnesium phosphate
9. Ammonium iodide
10. Manganese (III) nitrate
11. Iron (III) phosphate
12. Cobalt (II) carbonate
13. $\text{KF}$
14. $(\text{NH}_4\text{)}_2\text{SO}_4$
15. $\text{MgI}_2$
16. $\text{CuSO}_4$
17. $\text{AlPO}_4$
18. $\text{Pb(NO}_3\text{)}_2$
19. $\text{CoS}$
20. $\text{Hg}_2(\text{NO}_3\text{)}_2$
21. $\text{CuCO}_3$
22. $\text{Fe}_2\text{O}_3$
23. $\text{LiNO}_3$
24. $\text{Pb(SO}_4\text{)}_2$