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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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Why do we say that when something gains electrons it is reduced’? What is being reduced?

Interpretation Introduction

Interpretation:

The reason for why gaining of electrons by a substance is said to be reduced and what is being reduced should be determined.

Concept Introduction:

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. The oxidation and reduction process complementary to each other.

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

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.

The gain of electron by a substance results in decrease in oxidation state of that substance.

For example:

Mg2++ 2

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