Thursday, 28 September 2017

Basic Concepts of Chemistry

Chemistry studies - properties composition and structure of matter.

Basic constituents of matter - atoms and molecules

Chemistry –  science of atoms and molecules

Chemistry plays an important role in life.

Cisplatin and Taxol – used in cancer therapy

Azidothymidine (AZT) used in treating  AIDS patients

Matter – Anything which occupies space and has mass is called matter

Matter exists in three physical states – Liquid, solid and gas

Solids - have definite shape and volume.

Liquids have no definite shape but have definite volume.
Liquids take the shape of the container in which they are placed.

Gases do not have definite volume or definite shape.

Gases occupy the container in which they are placed.