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Unit 6 Chemical Bonding Flashcards | StudBud
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Unit 6 Chemical Bonding
Unit 6 Chemical Bonding
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Molecular Geometry, Bonding, & VSEPR
Flashcards
36 cards
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Practice quiz
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Questions
36
Answers
1
If two covalently bonded atoms are identical, the bond is
nonionic
coordinate covalent
polar covalent
nonpolar covalent
2
What type of bonding will have unequal sharing of electrons?
Nonpolar covalent
Ionic
Metallic
Polar covalent
3
What type of electrons are involved in the formation of a chemical bond?
dipoles
Lewis electrons
valence electrons
s electrons
4
Most chemical bonds are
metallic
purely ionic.
purely covalent
partly ionic & partly covalent
5
What type of bonding will occur between potassium and oxygen?
polar covalent
metallic
ionic
nonpolar covalent
6
Which compound has the geometry shown?
BrF5
CF5
H2O
PF5
7
Ionic compounds combine to form...
Molecules
Crystalline networks
Polyatomic ions
Seas of electrons
8
What do we call the sea of electrons associated with metallic bonding?
Delocalization
Crystalline lattice
Hybridization
9
The strong forces of intermolecular attraction between the positive and negative regions of molecules are called
lattice forces
dipole-dipole forces
London dispersion forces
orbital forces
10
What hybrid does BeF2 have?
sp
sp2
sp4
sp3
11
Bond energy is the energy required to make a chemical bond.
True
False
12
Which diatomic molecule is missing? Fluorine, Bromine, Hydrogen, Chlorine, Iodine, Oxygen
Helium
Carbon
Nickel
Nitrogen
13
What is the geometry of the following Lewis Structure?
t-shaped
trigonal pyramidal
trigonal planar
trigonal bipyramidal
14
What type of bonding happens when one atom transfers electrons to another atom?
Polar Covalent
Metallic
Nonpolar covalent
Ionic
15
What is the geometry of the following Lewis Structure?
trigonal bipyramidal
t-shaped
trigonal pyramidal
trigonal planar
16
What is the molecular geometry of the molecule shown?
Bent
L-Shaped
T-Shape
Linear
17
Shifting the layers of an ionic crystal causes the crystal to
become metallic.
shatter.
be drawn into a wire.
freeze.
18
Atoms naturally move
toward high potential energy
toward low potential energy
away from each other.
toward less stability
19
What type of bond has an electronegative difference of 0.3-1.7?
Nonpolar covalent
Ionic
Polar covalent
20
Which type of bond has an electronegative difference greater than 1.7?
Nonpolar covalent
Ionic
Polar covalent
21
What does VSEPR stand for?
Valence should electron pair repel
Very Scary Elephants Poison Rats
Valence shell electron pair repulsion
Valence shell energy proposition repel
22
What is the name of a neutral group of atoms that are held together by a covalent bond?
Formula unit
Polyatomic ion
Molecule
23
What is the molecular geometry of the molecule shown below
Trigonal Planar
Trigonal bipyramidal
Octahedral
Trigonal Pyramidal
24
A charged group of covalently bonded atoms is known as
polyatomic ions
molecules
ionic compounds
hybridization
25
The weakest intermolecular force is the
dipole-dipole force
London dispersion force
hydrogen bond
ionic bonding
26
What is the name given to the formula for a covalent bond?
Molecular formula
Lattice energy
Formula unit
27
What is the shape of the two molecules the elf is exhaling? (CO
2
and H
2
O)
Both Linear
Linear and Tetrahedral
Both Bent
Linear and Bent
28
An electron sea of electrons is a property of what type of bonding?
Covalent
Ionic
Metallic
29
What is the name of the formula written for ionic compounds?
Formula unit
Molecular formulas
Hybridization
30
Which element requires less than an octet of electrons?
O
F
C
H
31
Which element can have more than an octet of electrons?
H
Xe
B
N
32
Covalent compounds have high melting points
True
False
33
Molecular formulas show the number of atoms combined in a single molecule
False
True
34
What type of bond has an electronegative difference of less than 0.3?
Ionic
Nonpolar covalent
Polar covalent
35
Which molecule is nonpolar? (Hint: based on it's shape)
NH3
HF
CF4
H2O
36
What is the VSEPR model for a molecule of ammonia?
Bent
Trigonal Pyramidal
Tetrahedral
Linear
