You find the user guide for your DVD player. Which is the best section to start looking for information about a problem? glossar
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Molecule is the general term used to describe any atoms that are connected by chemical bonds. Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds.
One example of a molecule is (chlorine).
Examples of a compound is NaCl (sodium chloride) or (water)