Question

differentiate between a pure substance and a mixture

Answer 1

Hello dear
The pure substance is defined as the original substance which is free from dust,free from bacteria.
The pure substance has a purity of 100% then it is said to be a pure substance.
The Mixture which is defined as the substance which is mixed but one of more pure or input substances then it is called as a mixture.
The Mixture is group of elements of different kinds. Not only rude same type but may be different types.
Hope it can help...

Answer 2

Pure substances are those which are composed of single type of particles.for e.g. gold,water.

mixture refers to those which have composition of many particles.e.g.sea water,petrol smoke etc