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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

Assign an oxidation number to the underlined atom in each ion or molecule.

(a) Fe2O3,

(b) H2SO4,

(C) CO32-

(C) NO2+

(a)

Interpretation Introduction

Interpretation:

Oxidation state of the underlined element in given ion or molecule should be identified.

Concept Introduction:

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 compound is Iron(III) oxide and which is neutral compound.  The oxidation number of oxygen  is 2 , therefore the oxidation state of iron in Fe2O3 is given below,

Net charge on Iron(III) oxide is equal to sum of the oxidation number of two iron atoms and three oxygen atoms.  Therefore,

Net charge = Number of oxidation state of iron atom + number of oxidation state of oxygen atom

(b)

Interpretation Introduction

Interpretation:

Oxidation state of the underlined element in given ion or molecule should be identified.

Concept introduction:

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.

(c)

Interpretation Introduction

Interpretation:

Oxidation state of the underlined element in given ion or molecule should be identified.

Concept introduction:

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.

(d)

Interpretation Introduction

Interpretation:

Oxidation state of the underlined element in given ion or molecule should be identified.

Concept introduction:

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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