List of facts about Compounds:
Compounds consist of molecules formed from atoms of 2 or more different elements bound together chemically.
Compounds can be broken down into a simpler type of matter (elements) by chemical means; not by physical means
Compounds always contains the same ratio of component elements.
Compounds have properties different from their component elements
e.g. the compound water (H2O) is a liquid at room temperature and pressure and has different chemical properties from those of the two elements, hydrogen (H2) and oxygen (O2), from which it is formed.
Compounds can be represented using chemical formulae.
So,
A compound can be represented by a chemical formula.
A molecule is the smallest part of a compound whose properties are those of the compound.