Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 20 - Oxidation-Reduction Reactions - 20 Assessment: 35

Answer

Notice Aluminium INCREASES from an oxidation number of 0 to 3+ , because it loses three electrons. So it is oxidized. Notice Chlorine INCREASES from an oxidation number of -2 to 0 , because it loses two electrons. So it is oxidized. Notice Sulfur INCREASES from an oxidation number of 2- to 0 , because it loses two electrons. So it is oxidized. Notice Sr INCREASES from an oxidation number of 0 to 2+ , because it loses two electrons. So it is oxidized.

Work Step by Step

Notice Aluminium INCREASES from an oxidation number of 0 to 3+ , because it loses three electrons. So it is oxidized. Notice Chlorine INCREASES from an oxidation number of -2 to 0 , because it loses two electrons. So it is oxidized. Notice Sulfur INCREASES from an oxidation number of 2- to 0 , because it loses two electrons. So it is oxidized. Notice Sr INCREASES from an oxidation number of 0 to 2+ , because it loses two electrons. So it is oxidized.
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