Chemistry: Principles and Practice (3rd Edition)

Published by Cengage Learning
ISBN 10: 0534420125
ISBN 13: 978-0-53442-012-3

Chapter 1 - Introduction to Chemistry - Questions and Exercises - Exercises - Page 34: 1.40


(a) element (b) homogeneous mixture (c) compound (d) heterogeneous mixture

Work Step by Step

(a) element Gold is an element because it cannot be broken down any further into any constituent parts that can still be identified as gold. On the periodic table, gold is element 79 with the elemental symbol Au. (b) homogeneous mixture Milk is a homogeneous mixture because it is made of a combination of different substances combined physically in a consistent manner throughout. (c) compound Sugar is a compound because it is made of a combination of different elements combined chemically in fixed ratios. (d) heterogeneous mixture A vinaigrette is a heterogeneous mixture because it is made of different substances, but you would have to mix it up to have a consistency that is more or less uniform. If left untouched, the vinaigrette will separate into its different constituent parts.
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