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OpenStudy (anonymous):
Which of these chemical formulasNaCl, O2, He, or SO2represents both an element and a molecule? (Points : 5) NaCl O2 He SO2
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OpenStudy (anonymous):
@Frostbite
OpenStudy (anonymous):
For me is O2 becoz oxygen exist in diatomic which can me element and molecule correct if i wrong :)
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