Answer
Option A
Work Step by Step
Carbon monoxide is made up of carbon and oxygen atoms in a ratio thus Carbon monoxide is a compound, and compound is option A.
Chemistry (12th Edition)
by Wilbraham
Published by
Prentice Hall
ISBN 10:
0132525763
ISBN 13:
978-0-13252-576-3
Chapter 2 - Matter and Change - Standardized Test Prep - Page 59: 7
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