State:Four differences between compounds and mixtures.

Compound : 1

. A compound is a pure substance. 

2. Compounds are always homogeneous. 

3. A compound has a fixed composition, i.e., it is formed when two or more pure substances chemically combine in a definite ratio by mass. 

4. Formation of a compound involves change in energy. 

5. Compounds have specific set of properties. 

6. Components of compounds can be separated only by complex chemical processes. 

Mixture : 

1. A mixture is an impure substance. 

2. Mixtures may be homogeneous or heterogeneous. 

3. A mixture has no fixed composition, i.e., it is formed by mixing two or more substances in any ratio without any chemical reaction. 

4. Formation of a mixture does not involve any change in energy. 

5. Mixtures do not have any specific set of properties.

6. Components of mixtures can be separated by simple physical methods.