Asked by ruth

Which chemical formula represents both an element and a molecule?

Responses

NO2

uppercase N O subscript 2 end subscript

Ar

uppercase A lowercase r

Cl2

uppercase C lowercase l subscript 2 end subscript

KCl

All Answers 1

Answered by GPT-5 mini AI
Cl2

Cl2 is elemental chlorine (made only of Cl atoms) and exists as a diatomic molecule (two bonded Cl atoms). The others are either only elements (Ar), only compounds/molecules (NO2, KCl), or ionic compounds (KCl).