Answer
$Mg_{3}As_{2}$, Oxidation state of As is -3
Work Step by Step
Net oxidation state of a compound is 0, hence:
Mg: +2 x 3 = +6, hence As should have oxidation state of -3 (-3 x 2 = -6)
Chemistry: The Central Science (13th Edition)
by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.
Published by
Prentice Hall
ISBN 10:
0321910419
ISBN 13:
978-0-32191-041-7
Chapter 22 - Chemistry of the Nonmetals - Exercises - Page 993: 22.59d
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