Chemistry: The Central Science (13th Edition)

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

Chapter 7 - Periodic Properties of the Elements - Additional Exercises - Page 295: 7.90a



Work Step by Step

Molecular oxygen exists as $O_2(g)$. To balance the equation both atoms of oxygen must be used, so 2 molecules of $SrO(s)$ must be created, requiring an input of 2 $Sr(s)$ atoms..
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