States of Matter
Practice Test
1.
Which molecule will not undergo hydrogen bonding?
SC.A.1.4.1
a.
HF
b.
CH
4
c.
NH
3
d.
H
2
O
2.
A mixture of oxygen, carbon dioxide and nitrogen has a total pressure of 0.78 atm. What is the partial pressure of O
2
, if the partial pressure of CO
2
is 0.46 atm and the partial pressure of N
2
is 0.08 atm?
a.
0.24 atm
b.
2.40 atm
c.
0.15 atm
d.
1.69 atm
3.
Which of the following is not a fundamental particle in an atom?
SC.A.2.4.2
a.
element
b.
proton
c.
electron
d.
neutron
4.
A solid whose individual particles are arranged in an orderly, geometric, three-dimensional structure is a ___________.
a.
crystalline solid
b.
amorphous solid
c.
liquid crystal
d.
unit cell
5.
What is the smallest particle of an element that maintains the properties of the element?
SC.A.2.4.2
a.
cation
b.
molecule
c.
mixture
d.
anion
6.
A 4.628-g sample of an iron oxide was found to contain 3.348 g of iron and 1.280 g of oxygen. What is the simplest formula for this compound?
SC.A.2.4.2
a.
Fe
3
O
4
b.
FeO
c.
FeO
2
d.
Fe
2
O
3
7.
Which of the following phase changes will release energy during the transition?
SC.A.1.4.3
a.
sublimation
b.
condensation
c.
melting
d.
vaporization
8.
The chemical equation 2H
2
+O
2
→ 2H
2
O represents a __________.
a.
single-replacement reaction
b.
synthesis reaction
c.
double-replacement reaction
d.
decomposition reaction
9.
What mass of iron is contained in 62.8 grams of pyrite FeS
2
?
a.
31.7 g
b.
40.3 g
c.
29.2 g
d.
58.5 g
10.
In the reaction below, which of the components will precipitate?
NaCl
aq
+KBr
aq
→KCl
aq
+NaBr
aq
SC.A.1.4.5
a.
KBr
aq
b.
NaBr
aq
c.
none of the components precipitate
d.
KCl
aq
11.
Which of the following materials has the highest density?
SC.A.1.4.3
a.
ice
b.
water vapor
c.
liquid water
d.
steam
12.
How many molecules of ammonia are present in 34.0 g of ammonia NH
3
?
a.
6.02 x 10
23
b.
34
c.
1.77 x 10
22
d.
1.20 x 10
24
13.
Which of the following molecules can form hydrogen bonds?
SC.A.1.4.1
a.
BaH
3
b.
CH
3
c.
NH
3
d.
NaH
3
14.
Which of the following single-replacement reactions will occur?
a.
Br
2
g
+ HF
aq
→
b.
Au
s
+ Cu
NO
3
2
aq
→
c.
Cl
2
g
+ HBr
aq
→
d.
Cu
s
+ ZnCl
2
aq
→
15.
The phase change that describes the direct conversion of a solid into a gas is _______.
a.
melting
b.
vaporization
c.
sublimation
d.
deposition
16.
Na+
aq
is a _________________ in the following complete ionic equation.
H
+
aq
+ Cl
-
aq
+Na
+
aq
+OH
-
aq
→Na
+
aq
+Cl
-
aq
+H
2
O
l
a.
participating ion
b.
reacting molecule
c.
reacting compound
d.
spectator ion
17.
What is the negatively—charged particle in an atom?
SC.A.2.4.2
a.
neutron
b.
proton
c.
positron
d.
electron
18.
What can you conclude from the deflection of a cathode ray in a magnetic field?
SC.C.2.4.3
a.
The ray must have a positive charge.
b.
The ray must be composed of charged particles.
c.
The ray must need to travel in a vacuum.
d.
The ray must be composed of iron.
19.
A sample of a compound is found to contain 0.404 grams of Fe and 0.174 grams of O. What is the empirical formula for this compound?
SC.A.2.4.2
a.
FeO
b.
FeO
2
c.
Fe
3
O
4
d.
Fe
2
O
3
20.
One atmosphere is equal to ____________.
a.
760 cm Hg
b.
1 cm Hg
c.
1 mm Hg
d.
760 mm Hg
