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Work Step by Step
Hydration energy increases with a smaller atom and a more positively charged one:
$K^+\lt Ca^{2+}\lt Na^+\lt Mg^{2+}$
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 11 Intermolecular Forces and Liquids - Study Questions - Page 435e: 58
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