Answer
D
Work Step by Step
Enthalpy of formation is calculated from a reaction between a compound's component elements in their standard states ($Al, Cl_2$), and A is not balanced.
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 5 Principles of Chemical Reactivity: Energy and Chemical Reactions - 5-7 Enthalpy Calculations - Review & Check for Section 5-7 - Page 212: 1
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