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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Bromine is obtained from sea water by the following redox reaction:

Cl2(g) + 2 NaBr(aq) → 2 NaCl(aq) + Br2(ℓ)

(a) What has been oxidized? What has been reduced?

(b) Identify the oxidizing and reducing agents.

(a)

Interpretation Introduction

Interpretation:

Oxidized and reduced molecule in given reaction should be identified.

Concept introduction:

An oxidizing agent gains the electrons and is reduced in a chemical reaction and it is electron acceptor.

A reducing agent loses electrons and is oxidized in a chemical reaction and it is electron donor.

The oxidation state is called as oxidation number, which describes degree of oxidation (loss of electrons) of an atom in a chemical compound.  Theoretically, the oxidation state is positive, negative or zero.

Explanation

The given reaction is shown below,

  

The given compound is a neutral compound.  Therefore the overall charge is zero.

The oxidation state of chlorine is 0 in the reactant and -1 in t

(b)

Interpretation Introduction

Interpretation:

Oxidizing and reducing agent in given reaction should be identified.

Concept introduction:

An oxidizing agent gains the electrons and is reduced in a chemical reaction and it is electron acceptor.

A reducing agent loses electrons and is oxidized in a chemical reaction and it is electron donor.

The oxidation state is called as oxidation number, which describes degree of oxidation (loss of electrons) of an atom in a chemical compound.  Theoretically, the oxidation state is positive, negative or zero.

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