What is Meant by a Substance

Q. What Is Meant By A Substance?

Answer: A substance is defined as a material with certain features and components. A substance is a pure compound or element. A substance is a single atom of matter in its purest form. No physical mechanism can split it into different types of matter. 

H2O, or water, is a pure substance composed of hydrogen and oxygen. A homogeneous substance is one that is free of impurities. Elements and compounds are the two kinds of pure substances. 

Elements are built up of atoms of the same kind. All elements make up for pure substances. Precious metals are examples. Chemical bonds hold different sorts of atoms together to form compounds. Carbon dioxide is a good example.

 Properties of Substances

• A substance is a single atom of matter in its purest form.
• No physical technique can split it into different types of matter.
• Atoms and molecules must make up the material.
• A specific weight, mass, and volume must be present in the substance.
• The amount of matter in a substance is Mass.
• Measurement of Mass in relation to its volume is called density of the substance.
• The amount of matter is its volume and the corresponding space which is occupied by any substance is its volume.
• The point at which the liquid changes to a gas state in atmospheric pressure situations is called its boiling point. As the atmospheric pressure varies, so does the boiling point of the substance.
• The point at which the solid changes to a liquid state in atmospheric pressure situations is called its melting point. As the atmospheric pressure varies, so does the melting point of the substance.
• The ability of the substance to conduct heat & electricity is conductivity.

Few Examples Of Substance

1. Sulfur
2. Baking soda
3. Water
4. Sodium chloride – Table Salt

Sucrose – Pure Sugar