Ethane is an example of
A) a compound.
B) an element.
C) a mixture.
D) a cation.
Correct Answer:
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Q190: The number of atoms of carbon in
Q191: How many electrons are in the ion,S2-?
A)14
B)18
C)30
D)34
Q192: In which of the following sets do
Q193: In which of the following sets do
Q194: Iodine is an example of
A)a compound.
B)an element.
C)a
Q196: What is the standard isotope that is
Q197: Hydrochloric acid is an example of
A)a compound.
B)an
Q198: A cake is an example of
A)a compound.
B)an
Q199: How many electrons are in the ion,Fe2+?
A)24
B)26
C)28
D)56
Q200: One mole of which element has the
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