Question
1calculate the energy of an H-F bond.
A) 1128 kJ
B) 22 kJ
C) 44 kJ
D) 271 kJ
E) 564 kJ
2Which of the following molecules contains a double bond?
A) CO2
B) NH3
C) H2O
D) all
E) none
3This molecule shows the smallest number of lone pairs in its Lewis structure.
A) CH3CHO
B) CO2
C) CH3Cl
D) C2H6
E) All have zero lone pairs.
4In the Lewis structure for SF6, the central sulfur atom shares __________ electrons.
A) 4
B) 8
C) 10
D) 12
E) None of the above, because SF6 is an ionic compound.
5The Lewis structure for H3BO3 is
A)
B)
C)
D)
E)
6
A)
B)
C)
D)
E)
In the cyanide ion (CN–), the nitrogen has a formal charge of
-2
-1
0
2
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