Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 8 Bonding and Molecular Structure - Study Questions - Page 337f: 83


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Work Step by Step

a) Bonds broken: 2 C-H, 1 O=O Bonds formed: 2 C-O, 2 O-H Enthalpy of reaction: $2×413+498-2×358-2×463=-318\ kJ/mol$ It's an exothermic reaction. b) Both molecules are polar because they have asymmetrical polar bonds. c) The ones bonded to oxygen, the most electronegative atom to which a hydrogen is bonded.
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