Formula Writing Exercise A
For each box write the chemical formula of the compound formed by the cation at the head of the column
and the anion at the left of the row.
Li 
Br 
SO 24
OH 
F
O 2
NO 3
PO 34
Cl 
S 2
I
CO 32
LiBr
Mg 2
NH 4
Al 3
Na 
Ba 2
K
Ca 2
Formula Writing Exercise B
Write the formula for each ion below the ion’s name, then fill in the blanks with the correct formula and name of the compound
formed by the combination of ions.
Chloride ion
Sodium ion
Copper (I) ion
Ammonium ion
Calcium ion
Iron (II) ion
Iron (III) ion
Aluminum ion
NaCl
sodium
chloride
Hydroxide ion
Nitrate ion
Sulfide ion
Sulfate ion
Phosphate ion
FORMULA WRITING – EXERCISE 1
Give a correct chemical name for each of the following compounds:
1.
MgO
____magnesium oxide____________________
2.
PbI 2
______________________________________
3.
FeS
______________________________________
4.
ZnSO 4
______________________________________
5.
Li 2 CO 3
______________________________________
6.
Ba(NO 3 ) 2
______________________________________
7.
NH 4 NO 2
______________________________________
8.
K 2 SO 3
______________________________________
9.
CrCl 3
______________________________________
10.
Sr(C 2 H 3 O 2 ) 2 ______________________________________
11.
Mg 3 N 2
______________________________________
12. Ca 3 (PO 4 ) 2
______________________________________
13. SnO 2
______________________________________
14. KMnO 4
______________________________________
15. Hg 2 Cl 2
______________________________________
16. NaHCO 3
______________________________________
17. CCl 4
______________________________________
18. NO 2
______________________________________
19.
______________________________________
N2O5
20. PBr 5
______________________________________
21. CaO 2
______________________________________
22. HCl(aq)
______________________________________
23. HNO 3 (aq)
______________________________________
24.
H 2 SO 3 (aq)
______________________________________
25.
H 3 PO 4 (aq)
______________________________________
FORMULA WRITING – EXERCISE 2
Write chemical formulas for the following compounds:
1.
Potassium iodide
______________________________________
2.
Barium sulfate
______________________________________
3.
Aluminum nitrate
______________________________________
4.
Copper (II) carbonate
______________________________________
5.
Gold (III) chloride
______________________________________
6.
Ferric hydroxide
______________________________________
7.
Lead (II) chromate
______________________________________
8.
Nickel (II) hydroxide
______________________________________
9.
Mercury (II) bromide
______________________________________
10.
Silver acetate
______________________________________
11.
Magnesium chlorate
______________________________________
12.
Sodium peroxide
______________________________________
13.
Manganese (II) phosphate
______________________________________
14.
Ammonium sulfide
______________________________________
15.
Platinum (IV) fluoride
______________________________________
16.
Chromium (III) hydroxide
______________________________________
17.
Calcium oxalate
______________________________________
18.
Antimony trichloride
______________________________________
19.
Ammonia
______________________________________
20.
Silicon dioxide
______________________________________
21.
Carbon monoxide
______________________________________
22. Hydrobromic acid
______________________________________
23.
Nitrous acid
______________________________________
24.
Acetic acid
______________________________________
25.
Sulfuric acid
______________________________________