Chemistry: The Molecular Science (5th Edition)

by Moore, John W.; Stanitski, Conrad L.

Published by Cengage Learning

ISBN 10: 1285199049

ISBN 13: 978-1-28519-904-7

Chapter 14 - Acids and Bases - Questions for Review and Thought - General Questions - Page 652e: 93c

Answer

$H_2O$ is an amphiprotic substance.

Work Step by Step

$H_2O$ can either donate a proton, becoming $OH^-$, or receive a proton, becoming $H_3O^+$; You can also analyze the table $14.2$ (Page 624), and see that, $H_2O$ has a $K_a$ and a $K_b$ value, which is a characteristic of amphiprotic substances.

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