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