What are different types of Pure Substances
Pure Substances are of 2 types
(on the basis of their chemical combination)
- Elements
- Compounds
What are Elements
It is a substance which cannot be split into 2 or more simpler substances by chemical reactions
It is made up of only 1 type of atoms
Example
Oxygen (O 2 ), Nitrogen(N 2 ) , Hydrogen(H 2 ) , Helium(He), Sulphur (S 8 )
What are Compounds
They are made up of more than 1 type of atoms
Example
Water (H 2 O) is made up of 2 Atoms of Hydrogen and 1 Atom of Oxygen
Carbon Dioxide(CO 2 ) is made up of 1 atom of Carbon and 2 atoms of Oxygen
