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WorksheetsIMFS States of Matter
Total questions: 22
Worksheet time: 18mins
Name
Class
Date
1.
Which of these typically increases when IMF's increase?
a)
boiling point
b)
melting point
c)
viscosity
d)
all of these
2.
What is surface tension?
a)
a measure of the energy required to increase the surface area of a liquid
b)
a measure of the ability of a liquid to form a meniscus
c)
a measure of the adhesive properties of a liquid
d)
resistance to flow of a liquid
3.
When molar masses and polarities are similar, _____________ molecules tend to have higher IMF's.
a)
long, chain-like
b)
compact, spherical
c)
hydrocarbon
d)
hydrogen-containing
4.
Intermolecular forces are the forces
a)
within molecules
b)
between molecules
5.
Which of the following has the lowest boiling point?
a)
CaCl2
b)
PH3
c)
Cl2
d)
N2
6.
Which of the following will take the longest to evaporate?
a)
CH3CH2OH
b)
CH3OH
c)
CH3CH3
7.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
8.
All molecules have London forces between them, but dipole-dipole and hydrogen bonding are so much stronger that when they are present we can ignore London forces. Which of these has ONLY London forces?
a)
I2
b)
NH3
c)
OCl2
d)
SH2
9.
Which has a more clearly defined shape?
a)
Amorphous Solid
b)
Crystalline Solid
10.
Which type of solid is hard, brittle, and nonconducting unless dissolved in H2O?
a)
Ionic Crystal
b)
Covalent Molecular Crystal
c)
Metallic Crystal
d)
Covalent Network Crystal
11.
During a phase change what happens to temperature?
a)
it increases
b)
it decreases
c)
depends; if being heated it increases, if being cooled it decreases
d)
stays constant
12.
What intermolecular force is present in Cl2?
a)
dipole dipole
b)
H-bond
c)
dispersion
d)
metallic
13.
What is the strongest type of intermolecular force present in HF?
a)
dipole dipole
b)
dispersion
c)
H-bond
d)
ionic
14.
H2S has what kind of intermolecular force?
a)
dipole dipole
b)
dispersion
c)
H-bond
d)
ionic
15.
Which of these has the strongest London dispersion forces?
a)
F2
b)
Br2
c)
I2
d)
Cl2
16.
Rank these in order of strength:
covalent bond
London forces
hydrogen bond
dipole-dipole attraction
covalent bond
London forces
hydrogen bond
dipole-dipole attraction
a)
dipole-dipole>covalent bond>hydrogen bond>London
b)
London>dipole-diple>hydrogen bond>covalent bond
c)
covalent bond>hydrogen bond>dipole-dipole>London
d)
hydrogen bond>dipole-dipole>London>covalent bond
17.
Which of the following elements is not present in a hydrogen bond?
a)
F
b)
N
c)
O
d)
C
18.
What is viscosity?
a)
a measure of inward forces at the surface of a liquid
b)
a measure of the cohesive properties of a liquid
c)
a measure of the adhesive properties of a liquid
d)
resistance of a liquid to flow
19.
What type of IMF is present in all substances, regardless of polarity?
a)
London dispersion forces
b)
dipole-dipole forces
c)
ion-dipole forces
d)
hydrogen bonding
20.
What property gives metallic solids the ability to conduct electricity well, but not covalent network solids?
a)
Electrons in metallic solids are strongly bound in place
b)
Electrons in covalent network solids are freely moving around
c)
Covalent network solids are not bound to other atoms
d)
Metallic solids have many electrons that are not bound and can move about the solid
21.
All changes in the state of matter of a substance requires a change in
a)
mass
b)
temperature
c)
intermolecular forces
d)
energy
22.
All phase changes (changing states) requires energy to be added to or taken away.
a)
True
b)
False
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