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Which of the following is composed of ions? a.)CO2 b.)C c.)Zn d.)Fe2O3
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Which of the following is composed of ions?
a.)CO2
b.)C
c.)Zn
d.)Fe2O3

User Saleem Kalro
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1 Answer

1 vote
The answer is d.) Fe302.  CO2 is a compound (One carbon atom, two oxygen atoms), letters b. and c. are elements (Carbon and zinc, respectively).
User William Seemann
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