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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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. Balance each of the following half-reactions.

a. 3N 2 ( g ) + 2e 2N 3 ( aq )    b. O 2 2- ( aq ) O 2 ( g )    c. Zn ( s ) Zn 2 + ( aq )    d. F 2 ( g ) F ( aq )

Interpretation Introduction

(a)

Interpretation:

The given half reaction should be balanced

Concept Introduction:

The oxidation and reduction can be identified by change in oxidation state. If oxidation state of atom of an element increases, it undergoes oxidation and if it decreases, it undergoes reduction.

The general oxidation and reduction half reactions are as follows:

AsA+aq+e

Here, As undergoes oxidation to form A+aq with release of 1 electron. The oxidation state of A increases from 0 to 1.

Similarly,

B+aq+eBs

Here, B+aq undergoes reduction to form Bs with addition of 1 electron. The oxidation state of A decreases from 1 to 0.

Explanation

The given half reaction is as follows:

3N2g+2e2N3

Interpretation Introduction

(b)

Interpretation:

The given half reaction should be balanced

Concept Introduction:

The oxidation and reduction can be identified by change in oxidation state. If oxidation state of atom of an element increases, it undergoes oxidation and if it decreases, it undergoes reduction.

The general oxidation and reduction half reactions are as follows:

AsA+aq+e

Here, As undergoes oxidation to form A+aq with release of 1 electron. The oxidation state of A increases from 0 to 1.

Similarly,

B+aq+eBs

Here, B+aq undergoes reduction to form Bs with addition of 1 electron. The oxidation state of A decreases from 1 to 0.

Interpretation Introduction

(c)

Interpretation:

The given half reaction should be balanced

Concept Introduction:

The oxidation and reduction can be identified by change in oxidation state. If oxidation state of atom of an element increases, it undergoes oxidation and if it decreases, it undergoes reduction.

The general oxidation and reduction half reactions are as follows:

AsA+aq+e

Here, As undergoes oxidation to form A+aq with release of 1 electron. The oxidation state of A increases from 0 to 1.

Similarly,

B+aq+eBs

Here, B+aq undergoes reduction to form Bs with addition of 1 electron. The oxidation state of A decreases from 1 to 0.

Interpretation Introduction

(d)

Interpretation:

The given half reaction should be balanced

Concept Introduction:

The oxidation and reduction can be identified by change in oxidation state. If oxidation state of atom of an element increases, it undergoes oxidation and if it decreases, it undergoes reduction.

The general oxidation and reduction half reactions are as follows:

AsA+aq+e

Here, As undergoes oxidation to form A+aq with release of 1 electron. The oxidation state of A increases from 0 to 1.

Similarly,

B+aq+eBs

Here, B+aq undergoes reduction to form Bs with addition of 1 electron. The oxidation state of A decreases from 1 to 0.

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