Chapter 5:
Types of Compounds
Practice Test
1.
Fluorine atoms tend to react to form _______ ions.
a.
3+
b.
1-
c.
5-
d.
7+
Hint
2.
Iron atoms commonly react to form __________ ions.
a.
2+ and 4+
b.
2+ and 3+
c.
3+ and 4+
d.
1+ and 2+
Hint
3.
These types of compounds make eggshells brittle.
a. ionic
b. network
c. molecular
d. covalent
Hint
4.
The formula for a covalent compound is called a _______________.
a.
molecular formula
b.
macromolecule
c.
covalent formula
d.
covalent formula
Hint
5.
Name the ionic compound represented by the formula Mg(OH)
2
.
a.
magnesium oxide
b.
magnesium hydroxide
c.
magnesium hydrate
d.
manganese hydroxide
Hint
6.
What is the formula for lithium carbonate?
a.
Li
3
CO
2
b.
LiCO
c.
Li
2
CO
3
d.
LiCO
3
Hint
7.
Name the molecular compound represented by the formula PF
5
.
a.
phosphorus fluorine
b.
phosphorus(V) fluorine
c.
phosphorus pentafluoride
d.
phosphate
Hint
8.
The formulas O
2
, P
4
, and S
8
show that oxygen, phosphorus, and sulfur are _______________.
a.
diatomic
b.
ionic elements
c.
molecular elements
d.
hydrates
Hint
9.
The sum of the charges in an ionic compound must equal ________.
a.
zero
b.
negative eight
c.
positive one
d.
positive eight
Hint
10.
Compounds that contain water are called __________.
a.
hydrates
b.
aluminates
c.
aqueous
d.
anhydrous
Hint
11.
C
5
H
12
is the formula for the hydrocarbon _____________.
a.
methane
b.
carbon hydride
c.
pentane
d.
hexane
Hint
12.
What is the formula for sulfur trioxide?
a.
SO
3
b.
SO
3
2-
c.
S
3
O
d.
SO
Hint
13.
What is the formula for the binary compound that forms when potassium and sulfur react?
a.
KS
b.
K
2
S
c.
K
2
SO
4
d.
KS
2
Hint
14.
Which of these formulas represents the nitrate ion?
a.
HNO
3
b.
H
3
N
c.
NO
2
-
d.
NO
3
-
Hint
15.
The charge on an ion formed from an atom is called the _____________ of the atom.
a.
atomic radius
b.
reaction capacity
c.
oxidation number
d.
charge
Hint
16.
Calcium atoms tend to react to form _______ ions.
a.
1+
b.
2+
c.
4-
d.
6-
Hint
17.
Diatomic oxygen and ozone are _____________.
a.
isotopes
b.
different elements
c.
ionic
d.
allotropes
Hint
18.
Which of these formulas does not represent a polyatomic ion?
a.
NO
2
-
b.
CN
-
c.
PO
4
3-
d.
CO
Hint
19.
In aqueous solution, H
2
SO
4
is called _______________.
a.
hydrogen sulfur oxide
b.
sulfuric acid
c.
nitric acid
d.
hydrogen sulfite
Hint
20.
The formula for barium nitrite is __________.
a.
BaNO
b.
Ba(NO
3
)
2
c.
BaNO
32
d.
Ba(NO
2
)
2
Hint
