Chem R110 - Elementary Chemistry » Spring 2021 » Quiz 5
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Question #1
Which of the following exists in its natural state as a diatomic?
A.
bromine
B.
boron
C.
iron
D.
zirconium
Question #2
The elements in group 6A(16) form ions with a charge of
A.
6
B.
-6
C.
2
D.
-2
Question #3
What is the formula of aluminum sulfide?
A.
Al2S3
B.
AlSO4
C.
Al(SO3)3
D.
Al2(SO4)3
Question #4
What is the correct formula for the hypochlorite polyatomic ion?
A.
None of these
B.
ClO3-
C.
ClO2-
D.
ClO-
E.
ClO4-
Question #5
What is the correct formula for the molecular compound heptaphosphorus octafluoride?
A.
P5F8
B.
P7F8
C.
P6F7
D.
P 7F6
E.
None of these
Question #6
Which of the following is the formula for hydrofluoric acid?
A.
HFO4
B.
H2F
C.
HF2
D.
HF
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