Question

what is pure substance in 30 words .

Answer 1

pure subtance is a substance or material which don't contains two or more substance or in other way it is not mixed subtance and it is extracted and not more than 1 subtance

Answer 2

In Chemistry Pure substances refers to the substances which are made up of only one type of atom or only one type of molecule.

Pure substances are of two types

1.One is ELEMENTS - e.g Iron, Silver and Gold etc.

and another is
2.Compounds - e.g Water, Carbon dioxide and methane etc.



Hope it helps
#jerri