Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 9 - Liquids, Solids, and Materials - Questions for Review and Thought - Topical Questions - Page 421c: 52

Answer

Hydrogen bonding

Work Step by Step

We know that water is more able to effectively hydrogen bond when it is a solid than when it is a liquid. This ability leaves more space open. It would be hard to overstate the importance of this property: without it, ice would sink to the bottom of ponds when they froze.
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