What is meant by a substance?


A substance is a matter that has definite properties and composition. Every pure compound and element is a substance.

Properties of Substance

  • A substance is a pure single form of matter.
  • It cannot be separated into other kinds of matter by any physical process.
  • The substance must be composed of atoms and molecules
  • The substance must have a particular amount of weight, mass and volume.

Few examples of substance are

  1. Sugar
  2. Sodium chloride.
  3. Iron.


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