Answer
A. 10
B. 6
C. 3
Work Step by Step
Multiple the number of oxygens that each molecule has by the number of molecules in each set. Or simply count all the red atoms.
Introductory Chemistry (5th Edition)
by Tro, Nivaldo J.
Published by
Pearson
ISBN 10:
032191029X
ISBN 13:
978-0-32191-029-5
Chapter 5 - Molecules and Compounds - Exercises - Cumulative Problems - Page 161: 92
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