Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Additional Exercises - Page 79: 2.104b

Answer

manganese (IV) oxide +4

Work Step by Step

$MnO_2$ $Mn$ is manganese. $O$ is oxygen, which his called oxide when naming compounds. Oxygen has a charge of -2. The compound is neutral, so the charge/oxidation number of the manganese element was +4 (-2*2 because there are 2 oxygen atoms in the compound). The name is written as element(oxidation number) element so $MnO$ is manganese (IV) oxide.
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