Chemistry and Chemical Reactivity (9th Edition)

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

Chapter 5 Principles of Chemical Reactivity: Energy and Chemical Reactions - Study Questions - Page 217h: 101

Answer

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Work Step by Step

a) Combustions are always exothermic, they always release heat. b) Decompositions are usually endothermic since energy is required to break the molecular bonds.
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