VSEPR Theory (Intro): Question Preview (ID: 27295)

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Why do molecules assume certain geometries?
a) The electron pairs spread out to minimize repulsion.
b) The atoms want to be as close together as possible.
c) Molecules always want to have a symmetrical shape.
d) Because the chem gods said so.

What is the molecular geometry of a molecule with a steric number of 3 and 0 lone pairs?
a) Trigonal planar
b) Trigonal pyramidal
c) Bent
d) Linear

What is the hybridization of water, which has a steric number of 4?
a) sp
b) sp2
c) sp3
d) sp3d

What are the bond angles of water, which has a steric number of 4 and 0 lone pairs?
a) 90
b) 120
c) 109
d) 180

Which of the following could NOT be the shape of a molecule with a steric number of 4?
a) Bent
b) Linear
c) Tetrahedral
d) Trigonal pyramidal

Review: How many valence electrons does N have?
a) 3
b) 4
c) 5
d) 6

Review! What is the chemical formula for Nitrate?
a) NO2-1
b) NO3-1
c) NO3-2
d) NO3-3

a) .
b) .
c) .
d) .

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b) .
c) .
d) .

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b) .
c) .
d) .

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