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OpenStudy (anonymous):
Which of the following compounds is a molecule? a.NaCl b.MgBr2 c.H2 d.AlCl3
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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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