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Which of the following is an example of an element?

A.  

H2O (water)

 B.

fire

 C.

CO2 (carbon dioxide)

 D.

C6H12O6 (glucose sugar)

 E.

O2 (oxygen)

1 Answer

Relevance
  • 5 months ago

    O2 (oxygen) 

    cmac'm: The question did not ask about atoms vs molecules.  Oxygen is an element, period.

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