Answer 1

Characteristics	Compound	Mixture
1)Substance	Pure	Impure
2)Way of combination	Two or more components combined chemically	Two or more substances mixed physically
3)Ratio	Combine with a fixed ratio	Ratio of combination is not fixed.
4)Relation between the properties of constituent molecules and compound or mixture	The properties of the constituents are different from compound.	The properties of constituent remain unchanged in mixture.
5) Separation	The constituents of a compound can be separated by chemical methods.	The constituents of a mixture can be separated by physical methods.