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WorksheetsUnit 8 & 9 Chemistry
Total questions: 22
Worksheet time: 15mins
Name
Class
Date
1.
The _____ model shows how the atoms are arranged in 3-D space.
a)
space-filling
b)
ball and stick
c)
structural
d)
combined
2.
*
a)
trigonal pyramid
b)
linear
c)
bent
d)
angular
3.
Which of the following most likely represents the molecular geometry of water?
a)
A
b)
B
c)
C
d)
D
4.
What is the bond called where electrons are NOT shared equally?
a)
polar covalent
b)
nonpolar covalent
5.
What kind of chemical bond forms between a metal and a nonmetal?
a)
Covalent bond
b)
Ionic bond
c)
Can be either covalent or ionic
d)
Hydrogen bond
6.
Which of these elements does not exist as a diatomic molecule?
a)
I
b)
F
c)
H
d)
He
7.
A diatomic molecule with a triple covalent bond is
a)
N2
b)
Br2
c)
H2
d)
O2
8.
True or False: A covalent bond involves atoms sharing electrons.
a)
True
b)
False
9.
A strong covalent bond has ________ bond dissociation energy.
a)
a low
b)
a moderate
c)
a high
d)
no
10.
Which of the following is the strongest of all intermolecular forces?
a)
hydrogen bonds
b)
dispersion forces
c)
dipole interactions
d)
ionic bonds.
11.
Which of the following is the weakest?
a)
hydrogen bond
b)
polar covalent bond
c)
dipole interactions
d)
ionic bond
12.
True or False: When bonding electrons are shared unequally, the bond that is formed is nonpolar covalent.
a)
True
b)
False
13.
True or False: Ionic bonds involve electrons actually transferring between atoms.
a)
True
b)
False
14.
VSEPR stands for ________ theory.
a)
Valence Structure of Electron Pyramids and Regression
b)
Varied Structures of Electrons Paired and Replaced
c)
Varied Shell Energy of Protons and Radiation
d)
Valence Shell Electron Pair Repulsion
15.
Which is not a kind of intermolecular force?
a)
Hydrogen bonding
b)
Covalent bond
c)
London Forces
d)
Dipole-dipole attraction
16.
In general, substances with stronger intermolecular forces have ________ boiling points than those with weaker forces
a)
Higher
b)
Lower
c)
Forces and boiling point are not related
17.
If fluorine is more electronegative than carbon, what charge will the fluorine receive?
a)
negative
b)
slight negative
c)
positive
d)
slight positive
18.
What information do we look for on the periodic table if we want to examine intermolecular forces?
a)
atomic mass
b)
atomic number
c)
electronegativity
d)
ionization
19.
According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?
a)
Pairs of valence electrons
b)
Inner shell electrons
c)
Mobile Electrons
d)
Electrons closest to the nucleus
20.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
21.
What is a polar molecule?
a)
One that has a partial negatitive on one end and a partial positive on the other
b)
a molecule with little vibration
c)
an ionic compound
d)
the nonpolar bonds are arranged sequentially
22.
Which element forms a diatomic molecule using a triple covalent bond?
a)
C
b)
N
c)
O
d)
P
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