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 - Additional Questions and Problems - Page 249: 7.91e

Answer

Balanced equation: $2KBr(aq) + Cl_2(aq) --\gt 2KCl(aq) + Br_2(l)$ Reaction type: Single replacement.

Work Step by Step

$KBr(aq) + Cl_2(aq) --\gt KCl(aq) + Br_2(l)$ 1. Balance the number of bromine atoms, by putting a "2" in front of $KBr$. $2KBr(aq) + Cl_2(aq) --\gt KCl(aq) + Br_2(l)$ 2. Balance the number of chlorine atoms, by putting a "2" in front of $KCl$ $2KBr(aq) + Cl_2(aq) --\gt 2KCl(aq) + Br_2(l)$ 3. Classify the reaction. That reaction follows the pattern of a single replacement reaction (AB + C $--\gt$ CB + A). Where one compound/element replaces another in one compound.
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