Share Chemistry Chapter 8 Review
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Covalent bonds form when atoms ________ electrons.
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A triple covalent bond shares how many total electrons?
6
Which of the following atoms would most likely form a diatomic molecule?
all of these
oxygen
nitrogen
hydrogen
__________ bonds form between single bonds.
pi
alpha
beta
sigma
Which of the following elements has 4 valence electrons?
Carbon
Sulfur
Nitrogen
Boron
Molecular compounds are generally composed of what kinds of atoms?
non-metals
How many pairs of electrons are shared in a double covalent bond?
2 pairs
Which of the following elements has the greatest electronegativity?
Chlorine
Iodine
Bromine
Fluorine
The VSEPR model is mainly used to __________________________________.
write resonance structures
determine ionic charge
measure intermolecular forces
determine molecular shape
Unequal sharing of electrons between two bonded atoms ALWAYS indicates __________________.
a polar ionic bond
a nonpolar covalent bond
an ionic bond
a polar covalent bond
Water is an example of a ___________ molecule
polar
non-polar
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ionic
How many pi bonds are there in a triple bond?
3
1
2
Intermolecular attractions are _________ than either ionic or covalent bonds.
stronger
none of these
both weaker and stronger
weaker
In a coordinate covalent bond, ________________________________.
electrons are shared unequally
one atom contributes both electrons to a coordinate covalent
electrons are shared equally
none of the above
________________ occur when polar molecules are attracted to one another.
Dipole interactions
ionic compounds
none of the above
hydrogen bonds
Special properties of water, such as adhesion, cohesion, and surface tension can be attributed to which intermolecular force?
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Van de waals forces
Hydrogen bonds
london dispersion forces
