Answer
+6
Work Step by Step
BaCrO4. Oxygen is -2 so we have 4*-2 = -8. Barium is an alkaline earth metal so it is +2. Overall we must have 0 since it is uncharged so we have:
+2 + x - 8 = 0
x = +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 4 - Reactions in Aqueous Solution - Exercises - Page 159: 4.50f
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