Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises: 2.52b


6 oxygen atoms.

Work Step by Step

Ca(ClO$_{3}$)$_{2}$ has 6 oxygen atoms because there are 3 oxygen atoms per chlorine, and there are 2 molecules of this compound per 1 molecule of calcium. Thus, 3$\times$2=6.
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