If you add some sugar or salt to the water, we see that in a short time they dissolve in the water and then do not appear in the water.

We get a mixture of these two by mixing water and sugar or by mixing water and salt. Thus, mixing of two or more substances in any proportion gives that mixture. The air around us is also a mixture, in which many types of gases such as oxygen, nitrogen, sulfur dioxide, carbon dioxide are found.

Differences in elements, compounds and mixtures

The properties of these substances vary depending on the molecular arrangements of the elements, compounds and mixtures.


  1. Consists of only one type of atom.
  2. Cannot be decomposed into new substance.


  1. Different types of atoms are formed by mutual combination.
  2. Can be decomposed into more than one new substance.


  1. There is no fixed ratio of ingredients.
  2. Components can be separated by simple means.
  3. The composition is not uniform in all parts of the mixture.
  4. They reflect the properties of all their ingredients.


  1. The ingredients have a fixed ratio.
  2. Components cannot be separated by simple means.
  3. The atoms in all parts of the compound have the same composition.
  4. They exhibit some new properties apart from their ingredients.