About the diffs. between molecules and compounds.
I ain't no chemist ... but my gut says if Nature put it together, it's a molecule. If Man (not woman, of course has anything to do with it, it's a compound.
Nope. It has nothing to do with where it come from, only its construction. A molecule generally refers to a discrete unit of atoms bonded together in some way, whereas compounds describe where two or more different types of atoms that cone together to form a bond. They describe very similar things, and as mentioned above it is true that most of the things that we call molecules can also be called compounds, but this is not true in the other direction, nor is it always true. Can you say, based on this, whether the following are molecules, compounds, or both:
, NaCl, CH3
And, er, why not women?
(Edited so as not to give too much away)