Chemistry (12th Edition)

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

Chapter 20 - Oxidation-Reduction Reactions - 20 Assessment: 70

Answer

Rb + I2 -> RbI2 See explanation. See explanation.

Work Step by Step

The oxidizing agent is I. The oxidation number of I INCREASES from 0 to +2. Barium undergoes a single displacement in which the hydrogen is displaced from water. H is reduced. It is the oxidizing agent. H oxidation number decreases from 1+ to 0. To predict the product of the reaction, observe that the reaction follows the format of a single replacement reaction, in which the Al replaces Iron, a less active metal in iron (II) sulfate. To predict the product of the reaction, observe that the reaction follows the format of a single replacement reaction, in which the Al replaces Iron, a less active metal in iron (II) sulfate. Iron's oxidation number is reduced from 2+ to 0 in the reaction - meaning it "gains the electrons" the oxidized atom loses - it is the oxidizing agent.
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