Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 7 - Section 7.8 - Energy in Chemical Reactions - Understanding the Concepts - Page 248: 7.82b

Answer

The balanced equation for the reaction is: $N_2(g) + 3I_2(g) --\gt 2NI_3(g)$

Work Step by Step

1. As we have determined in 7.82a, the reactants are: $N_2$ and $I_2$, and the product is : $NI_3$ - Write the unbalanced equation: $N_2(g) + I_2(g) --\gt NI_3(g)$ 2. Balance the number of nitrogen atoms, by putting a "2" as the coefficient of $NI_3$: $N_2(g) + I_2(g) --\gt 2NI_3(g)$ 3. Balance the number of iodine atoms, by putting a "3" as the coefficient of $I_2$: $N_2(g) + 3I_2(g) --\gt 2NI_3(g)$
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