Question

what is a chemically a pure substances​

Answer 1

A pure substance is a substance which is not comprised of any other substances. Impure substances may be mixtures of elements, or a mixture of compounds, or a mixture of both elements and compounds.

Answer 2

Answer:

In chemistry, a pure substance is a sample of matter with both definite and constant composition and distinct chemical properties. To avoid confusion, a pure substance is often referred to as a "chemical substance."

Examples of Pure Substances

Examples of pure substances include chemical elements and compounds. Alloys and other solutions may also be considered pure if they have a constant composition.

Water

Diamond

Gold

Table salt (sodium chloride)

Ethanol

Brass

Bronze

Saline solution

Explanation: