3
H2O
H 3 PO 4
SO 3 2−
SO 3
NH 4 +
NO 2 −
NO 2
Br−
Br 2
Br
NUMBER
OF
ATOMS
CHEMICAL
FORMULA
OR
SYMBOL
0
TOTAL
CHARGE
10
NUMBER
OF
PROTONS
10
NUMBER
OF
ELECTRONS
Atom
Molecule
×
Monatomic
Anion
×
×
Polyatomic
Cation
Monatomic
Cation
THE FORMULA OR SYMBOL REPRESENTS:
INTERPRETING CHEMICAL FORMULAS AND SYMBOLS
Polyatomic
Anion
Cl 2 O 7
H2O
IF 7
P4S3
SiC
SO 2
CO
Formula
dihydrogen disulfide
dinitrogen monoxide
carbon disulfide
Name
Fill the blanks in the following table.
KrF 2
CH 4
OF 2
N2O3
NH 3
Formula
dinitrogen pentaoxide
sulfur trioxide
silicon tetrachloride
sulfur hexafluoride
tetraphosphorus decaoxide
Name
FORMULAS AND NAMES OF BINARY COVALENT COMPOUNDS
Aluminum ion
Iron (III) ion
Iron (II) ion
Calcium ion
Copper (I) ion
Na
+
Sodium ion
sodium chloride
NaCl
Cl ─
Chloride ion
Oxide ion
Bromide ion
Sulfide ion
(1) Write the formula for each ion below the ion’s name.
(2) Fill in the blanks with the correct formula and name of the compound formed by the combination of ions.
FORMULAS AND NAMES OF BINARY IONIC COMPOUNDS
Nitride ion
FORMULAS OF IONIC COMPOUNDS WITH
MONO- AND POLYATOMIC IONS
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+
minus H+
minus H+
minus H+
minus H+
H2SO4
minus H+
H2CO3
minus O
minus O
HNO3
minus H+
minus H+
minus H+
Oxyacids and Oxyanions of Nitrogen, Carbon, Sulfur, and Phosphorus
minus H+
minus H+
minus H+
H3PO4
minus H+
plus O
minus H+
HClO3
minus O
Acids and Anions of Chlorine
minus H+
minus O
minus H+
minus O
minus H+
plus H2O
FORMULA-TO-NAME EXERCISE
Give a correct chemical name for each of the following compounds.
1.
MgO
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)
magnesium
oxide
NAME-TO-FORMULA EXERCISE
Give a correct chemical name for each of 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
COMBINED NOMENCLATURE EXERCISE
Indicate the covalent compounds with *. Write the complete chemical formulas for the following
compounds.
1. Barium sulfate
11. Calcium chloride
2. Potassium oxide
12. Lithium hydroxide
3. Aluminum iodide
13. Carbon disulfide
4. Tin (IV) fluoride
14. Manganese (II) phosphide
5. Iron (III) sulfite
15. Beryllium acetate
6. Mercury (II) nitrite
16. Copper (I) phosphate
7. Dinitrogen pentoxide
17. Hydrogen peroxide
8. Boron tribromide
9. Sodium hydrogen carbonate
18. Nickel (II) chromate
(sodium bicarbonate)
10. Nitrous acid
19. Hydrocyanic acid
20. Silver hypochlorite
Indicate covalent compounds with *. Write the complete name for the following chemicals.
1.
Mg(CN) 2
10.
Li 3 PO 4
2.
P 4 O 10
11.
KMnO 4
3.
(NH 4 ) 2 CO 3
12.
Hg(OH) 2
4.
CdSe
13.
Cr 3 (BO 3 ) 2
5.
H 2 SO 3 (aq)
14.
OF 2
6.
N 2 (g)
15.
HBrO 3 (aq)
7.
CsHS
16.
SiCl 4
8.
KH2PO4
17.
HBr(aq)
9.
Cd(NO3)2·7H2O
18.
AsH 3