Chemistry: The Central Science (13th Edition)

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

Chapter 3 - Chemical Reactions and Reaction Stoichiometry - Exercises - Page 114: 3.21e

Answer

$K_2O(s)+H_2O(l)\rightarrow 2KOH(aq)$ This is combination.

Work Step by Step

$K_2O(s)+H_2O(l)\rightarrow KOH(aq)$ This is a combination reaction because two compounds are combining to create a third compound. Add a coefficient of 2 to $KOH$ to balance all elements. $K_2O(s)+H_2O(l)\rightarrow 2KOH(aq)$
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