Differences between mixtures and compounds

Mixtures

1. Nature: When two or more elements or compounds or both are mixed together, such that they do not combine chemically, a mixture is formed.
2. Structure: Mixture may be homogeneous or heterogeneous
3. composition: In case of mixtures their constituents can be present in any desired ratio.
4. Properties: The constituents of a mixture retain their individual chemical and physical properties.
5. Separation of constituents: The constituents of a mixture can be separated by physical means.

6. Energy changes: During the formation of a mixture no energy change takes place.

7. cooking gas is a mixture of gases such as butane and pentane.

8. Air is a mixture of oxygen, nitrogen, carbon dioxide and water vapour.

Compounds

1. Nature: When two or more elements unite chemically in a fixed proportion, a compound is formed.

2. structure: Compounds are always homogeneous.

3. composition: In case of compounds, the constitunents are present in fixed ratio by weight.

4. properties: The properties of the compounds are entirely different from the properties of consituents.

5. Separation of constituents: The constituents of a compound cannot be separated by physical means.

6. Energy changes: During the formation of a compound energy changes take place.

7. Milk is a mixture of fats, carbo-hydrates, protiens, vitamins and mineral salt.

    In this way, there is an endless list of mixtures.