Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 13 - States of Matter - 13 Assessment - Page 446: 86

Answer

2 pairs unshared pairs electrons are in each molecule of H2O

Work Step by Step

8 total valence electrons are in H2O, and the Hydrogens only need 2 electrons shared each to achieve noble gas formation, so 2 unshared pairs are left for Oxygen
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