Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 4 - Sections 4.1-4.9 - Exercises - Problems by Topic - Page 189: 92c

Answer

$Cu: +2$ , $Cl: -1$

Work Step by Step

The oxidation state of group 7A atoms is normally $-1$ and the sum of the oxidation states of all atoms in a neutral molecule must equal 0. $CuCl_{2}$ is a neutral molecule so the oxidation state of Cu must be $+2$ as $2(-1)+(+2)=0$.
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