Question

What is a pure substance and a impure substance .

Answer 1

Answer:

A pure element or compound contains only one substance, with no other substances mixed in. Impure materials may be mixtures of elements, mixtures of compounds, or mixtures of elements and compounds.

Answer 2

Answer :

Pure substance :

• Pure substance consists of a single type of substance .
• Pure substance cannot be seperated into other substances by physical methods .
• Pure substance has its own definate properties .

Impure substance / Mixture :

• Mixture consists of two or more pure substances .
• Mixture can be seperated into its components by physical methods .
• Mixture shows the properties of its components .