Chem 065 - Introductory General Chemistry » Winter 2024 » Chapter 10 Quiz

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Question #1
How many total valence electrons are in the Lewis structure of CBr4?
A.   8
B.   82
C.   0
D.   32
E.   6
Question #2
The total number of valance electrons to be counted for the Lewis structure of the PO43- polyatomic ion is
A.   32
B.   26
C.   8
D.   29
Question #3
If the electronegativity difference between elements X and Y is 0.3, the bond between the elements X-Y is
A.   nonpolar covalent.
B.   ionic.
C.   nonpolar ionic.
D.   polar covalent.
E.   impossible.
Question #4
The shape of the ammonia molecule ( NH3) is
A.   trigonal planar
B.   trigonal pyramidal
C.   linear.
D.   bent
E.   tetrahedral
Question #5
Hydrogen sulfide, H2S, has a shape similar to
A.   carbon monoxide.
B.   hydrogen chloride.
C.   water.
D.   carbon dioxide.
E.   carbon tetrachloride.
Question #6
What is the molecular geometry if you have a double bond, a single bond and a lone pair around the central atom?
A.   Tetrahedral
B.   Bent
C.   Trigonal Pyramidal
D.   Linear

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