Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 1 - The Nature of Chemistry - Exercise 1.7 - Classifying Matter - Page 21: e


Heterogenous mixture

Work Step by Step

Quarters made since 1965 have copper on the inside and a copper-nickel alloy on the outside. (You can see the copper core by looking at the side). Because it is not uniform throughout, it is heterogeneous.
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