Question

molequles are made up of​

Answer 1

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A molecule may be homonuclear, that is, it consists of atoms of one chemical element, as with two atoms in the oxygen molecule (O2); or it may be heteronuclear, a chemical compound composed of more than one element, as with water (two hydrogen atoms and one oxygen atom; H2O).

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Answer 2

Answer:

Atom

Explanation:

Beacuse there are two atom..