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

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