How many atoms of oxygen are indicated in the formula Fe(NO3) 2?
A) 2
B) 3
C) 5
D) 6
Correct Answer:
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Q18: Which element is a liquid at room
Q19: Which element is a liquid at room
Q20: Which type of element has the following
Q21: Which is a characteristic of all nonmetals?
A)Always
Q22: If an element is a metal,one would
Q24: The charge of a cation is
A)positive.
B)negative.
C)neutral.
Q25: The charge of an anion is
A)positive.
B)negative.
C)neutral.
Q26: Which is a compound?
A)Air
B)Lead
C)Water
D)Iron
Q27: The number of nonmetallic atoms in Al2(SO3)3
Q28: Which represents an element?
A)CO
B)NI
C)N2
D)OS
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