Question

. Short answer type questions:
(1) Wha
(3) Define a pure substance.​

Answer 1

Answer:

Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom. An element is a pure substance as it cannot be broken down or transformed into a new substance even by using some physical or chemical means.

Explanation:

Answer 2

Answer:

Explanation:

3)A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen. A pure substance does not have to be of a single element or compound.