Chemistry Concepts and Applications

Section 2: Molecular Shape and Polarity

Self Check Quizzes

1
The angle between the two bonds in a water molecule are __________.

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A)a little less than predicted by the gumdrop model
B)the same as those predicted by the gumdrop model
C)unpredictable
D)a little more than predicted by the gumdrop model.
2
In a carbon dioxide molecule, the carbon atom and oxygen atoms form what sort of bonds?

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A)one single and one double bond
B)two double bonds
C)one single and one triple bond
D)two single bonds
3
The CO2 molecule is __________.
A)hexagonal
B)linear
C)pyramidal
D)trigonal planar
4
The arrangement of electron pairs around each of the two carbon atoms in the ethene molecule, C2H4, is best described as __________.
A)trigonal planar
B)tetrahedral
C)linear
D)square planar
5
Water molecules stick together to form droplets because of their __________.
A)polarities
B)masses
C)volumes
D)covalencies
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