Difference between compound and molecules

O/A Note
Compound Molecules
Compounds are made up of two or more elements
chemically combined.
A gathering of two or more substances without chemical
bond.
To make a compound, chemical reactions are needed. To make a mixture chemical reactions are not needed.
Compounds cannot be separated by physical method of
separation.
Mixture can be separated by physical method of
separation.
In compounds there must be a fixed proportion of
substance.
 There is no fixed proportion of substance in mixture.
To make compounds energy changes take place. To make mixture no energy changes take place.