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Biology 8 Online
OpenStudy (anonymous):

Which of the following compounds is a molecule? a.NaCl b.MgBr2 c.H2 d.AlCl3

OpenStudy (anonymous):

A the one w/out a number

OpenStudy (anonymous):

I think the others are compunds whereas H2 is a molecule. The rest are composed of ions whereas H2 is a molecule because the atoms are covalently bonded.

OpenStudy (anonymous):

Here's a link to an explanation of the difference: http://en.wikipedia.org/wiki/Molecule

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