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<TITLE> Molecules. Molecular and Compounds </TITLE>
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<B>Molecules, Molecular and Compounds
</B>-<BR><BR>
<UL><LI><B>Molecules</B> consist of a
number of <A HREF="Atom.htm">atoms</A> bonded together
such as <A HREF="O2.htm">O<SUB>2</SUB></A>
and <A
HREF="AbbreviationSO2.htm">SO<SUB>2</SUB></A>.<BR><BR>
<LI><B>Molecular</B> refers to a substance
existing as discrete, separate molecules, such as the gaseous form of <A
HREF="SulphurDioxide.htm">sulphur dioxide</A>
(SO<SUB>2</SUB>).<BR><BR>
<LI><B>Compounds</B> are molecules formed
from more then one type of atom such as molecules of sodium metabisulphite
(<A HREF="Na2S2O5.htm">Na<SUB>2</SUB>S<SUB>2</SUB>O<SUB>5</SUB></A>).
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