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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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. What is a half-reaction? What does each of the two half-reactions that make up an overall press represent?

Interpretation Introduction

Interpretation:

Half-reaction and the overall process make up by the two half-reactions should be determined.

Concept Introduction:

The oxidation state is defined as the charge(s) that an atom would have when electron(s) were transferred completely from a molecule or ion.

Explanation

Chemical equations that show only the changes involved in oxidation or reduction (The oxidation and reduction are defined by the loss and addition of electrons. The loss of electrons results in oxidation whereas addition of electrons results in reduction.) are said to be half-reactions.

For example:

Oxidation half-reaction:

ZnZn2++2e-

Reduction half-reaction:

Cu2+

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