World of Chemistry
World of Chemistry
7th Edition
ISBN: 9780618562763
Author: Steven S. Zumdahl
Publisher: Houghton Mifflin College Div
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Chapter 8, Problem 39A

(a)

Interpretation Introduction

Interpretation:

The given decomposition reaction needs to be balanced.

  NI3(s)N2(g)+I2(s)

Concept Introduction:

The reaction in which a single break down into two or more elements is known as decomposition reaction.

(a)

Expert Solution
Check Mark

Explanation of Solution

The unbalanced reaction is shown below:

  NI3(s)N2(g)+I2(s)

In reactant side, there is one nitrogen atom and in product side there are 2 nitrogen atoms. So, multiply with 2 in reactant side and to balance the Iodine atom, multiply 3 with product side.

The decomposition reaction is shown below:

  2NI3(s)N2(g)+3I2(s)

Nitrogen triiodide is an inorganic compound which decomposed into nitrogen gas and iodine solid.

(b)

Interpretation Introduction

Interpretation:

The given decomposition reaction needs to be balanced.

  BaCO3(s)BaO(s)+CO2(g)

Concept Introduction:

The reaction in which a single break down into two or more elements is known as decomposition reaction.

(b)

Expert Solution
Check Mark

Explanation of Solution

The unbalanced reaction is shown below:

  BaCO3(s)BaO(s)+CO2(g)

The decomposition reaction is shown below:

  BaCO3(s)BaO(s)+CO2(g)

Metal carbonate decomposed into solid of metal oxide and produce carbon dioxide gas.

(c)

Interpretation Introduction

Interpretation:

The given decomposition reaction needs to be balanced.

  C6H12O6(s)C(s)+H2O(g)

Concept Introduction:

The reaction in which a single break down into two or more elements is known as decomposition reaction.

(c)

Expert Solution
Check Mark

Explanation of Solution

The unbalanced reaction is shown below:

  C6H12O6(s)C(s)+H2O(g)

In reactant side, there are 6 carbon atom and 12 hydrogen atom and in product side there is one carbon atom and 1 H2O molecule. Therefore, multiply with 6 for C atom and H2O molecule to balance the reaction.

The decomposition reaction is shown below:

  C6H12O6(s)6C(s)+6H2O(g)

When glucose decomposed it will form carbon solid and water molecules.

(d)

Interpretation Introduction

Interpretation:

The given decomposition reaction needs to be balanced.

  Cu(NH3)4SO4(s)CuSO4(s)+NH3(g)

Concept Introduction:

The reaction in which a single break down into two or more elements is known as decomposition reaction.

(d)

Expert Solution
Check Mark

Explanation of Solution

The unbalanced reaction is shown below:

  Cu(NH3)4SO4(s)CuSO4(s)+NH3(g)

In the reactant side, there are 4 NH3 molecule and in product side there is one NH3 molecule. Therefore; multiply with 4 to balance the reaction.

The decomposition reaction is shown below:

  Cu(NH3)4SO4(s)CuSO4(s)+4NH3(g)

Tetrammine copper(II) sulphate decompose into copper sulphate and produce ammonia gas.

(e)

Interpretation Introduction

Interpretation:

The given decomposition reaction needs to be balanced.

Concept Introduction:

The reaction in which a single break down into two or more elements is known as decomposition reaction.

(e)

Expert Solution
Check Mark

Explanation of Solution

The unbalanced reaction is shown below:

  NaN3(s)Na3N(s)+N2(g)

In the reactant side; there are 1 sodium atom and in the product side there are 3 sodium atoms. So, multiply with 3 in the reactant side to balance the sodium atom and to balance the nitrogen atom multiply with 5/2 in the product side.

The decomposition reaction is shown below:

  3NaN3(s)Na3N(s)+52N2(g)

When sodium azide decompose it will form solid of sodium nitride and nitrogen gas.

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