Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 1 - Sections 1.1-1.8 - Exercises - Review Questions: 11

Answer

A pure substance is comprised of only exactly one component (atom or molecule) with no contamination. A mixture has multiple components in any proportions.

Work Step by Step

A pure substance is made up of only one component and its composition is invariant while a mixture by contrast is composed of two or more components in proportions that can vary from sample to another.
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