Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337399425
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 7, Problem 51QAP
Interpretation Introduction

(a)

Interpretation:

Give two examples of single displacement and double displacement. How the two reactions are types of similar and how are they different.

Concept Introduction:

Displacement or Replacement reaction:

There are two types of Displacement or Replacement reactions which are follows:

  1. Single Replacement or displacement reaction.
  2. Double Replacement or displacement reaction.

Single Replacement reaction:

In Single Replacement or displacement one element or group of reactant is replaced by another element or group. For example the reaction between Zn and HCl 

Zn (s)+ 2 HCl (aq)H2 (g)+ZnCl2 (aq)

In the above reaction hydrogen is replaced by zinc metal.

Double Replacement or displacement reaction:

In Double Replacement or displacement reaction all element or group of reactants is replaced by another element or group. For example the reaction between BaCl2 and Na2SO4  as follows:

BaCl2 (aq)+Na2SO4 (aq)2NaCl (aq)+BaSO4 (s)

In the reaction between BaCl2 and Na2SO4  both replaced and sodium chloride, NaCl  and barium suplahte, BaSO4  formed.

Expert Solution
Check Mark

Answer to Problem 51QAP

Examples of Double Replacement or displacement reactions:

KCl (aq)+AgNO3 (aq) AgCl (s) + KNO3 (aq)

BaCl2 (aq)+Na2SO4 (aq)2NaCl (aq)+BaSO4 (s)

Examples of single Replacement or displacement reactions:

Zn (s)+ 2 HCl (aq)H2 (g)+ZnCl2 (aq)

Fe (s)+ 2 HCl (aq)H2 (g)+FeCl2 (aq)

In the above two reactions single displacement and double displacement reactions; displacement or replacement occurred by another group or element.

The double Replacement or displacement reaction is an example of precipitate reaction while single displacement not.

Explanation of Solution

Single Replacement reaction:

In Single Replacement or displacement one element or group of reactant is replaced by another element or group. For example the reaction between Zn and HCl 

Zn (s)+ 2 HCl (aq)H2 (g)+ZnCl2 (aq)

In the above reaction hydrogen is replaced by zinc metal.

Double Replacement or displacement reaction:

In Double Replacement or displacement reaction all element or group of reactants is replaced by another element or group. For example the reaction between BaCl2 and Na2SO4  as follows:

BaCl2 (aq)+Na2SO4 (aq)2NaCl (aq)+BaSO4 (s)

In the reaction between BaCl2 and Na2SO4  both replaced and sodium chloride, NaCl  and barium suplahte, BaSO4  formed.

Examples of Double Replacement or displacement reactions:

KCl (aq)+AgNO3 (aq) AgCl (s) + KNO3 (aq)

BaCl2 (aq)+Na2SO4 (aq)2NaCl (aq)+BaSO4 (s)

Examples of single Replacement or displacement reactions:

Zn (s)+ 2 HCl (aq)H2 (g)+ZnCl2 (aq)

Fe (s)+ 2 HCl (aq)H2 (g)+FeCl2 (aq)

In the above two reactions single displacement and double displacement reactions; displacement or replacement occurred by another group or element.

The double Replacement or displacement reaction is an example of precipitate reaction while single displacement not.

Interpretation Introduction

(b)

Interpretation:

Give two examples of reactions in which water and gases are the driving forces.

Concept Introduction:

The most common driving forces which create product in chemical reactions are as follows:

  1. Formation of a solid.
  2. Formation of water.
  3. Transfer of electrons.
  4. Formation of gas.

Expert Solution
Check Mark

Answer to Problem 51QAP

The formation of gas is an evidence of a chemical reaction because gas present as molecule from not in ion forms.

Examples Zn (s)+ 2 HCl (aq)H2 (g)+ZnCl2 (aq)

Fe (s)+ 2 HCl (aq)H2 (g)+FeCl2 (aq)

The formation of water is an evidence of a chemical reaction because water is present as molecule from not in ion forms.

Examples

NaOH (aq) + HCl(aq)  NaCl (aq) + H2O (l)

H2O2(aq)H2O(l)+O2(g).

Explanation of Solution

The formation of gas is an evidence of a chemical reaction because gas present as molecule from not in ion forms.

Examples:

Zn (s)+ 2 HCl (aq)H2 (g)+ZnCl2 (aq)

Fe (s)+ 2 HCl (aq)H2 (g)+FeCl2 (aq)

The formation of water is an evidence of a chemical reaction because water is present as molecule from not in ion forms.

Examples

NaOH (aq) + HCl(aq)  NaCl (aq) + H2O (l)

H2O2(aq)H2O(l)+O2(g).

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Chapter 7 Solutions

Introductory Chemistry: A Foundation

Ch. 7 - ixing an aqueous solution of potassium nitrate...Ch. 7 - Prob. 6ALQCh. 7 - se the Arrhenius definition of acids and bases to...Ch. 7 - Prob. 8ALQCh. 7 - hy is the formation of a gas evidence of a...Ch. 7 - Label each of the following statements as true or...Ch. 7 - Look at Fig. 7.2 in the text. It is possible for a...Ch. 7 - What is the purpose of spectator ions? If they are...Ch. 7 - Which of the following must be an...Ch. 7 - If an element is a reactant or product in a...Ch. 7 - Prob. 15ALQCh. 7 - On the basis of the general solubility rules given...Ch. 7 - Write the balanced formula and net ionic equation...Ch. 7 - hy is water an important solvent? Although you...Ch. 7 - hat is a “driving force”? What are some of the...Ch. 7 - Prob. 3QAPCh. 7 - Prob. 4QAPCh. 7 - escribe briefly what happens when an ionic...Ch. 7 - hen the ionic solute K3PO4is dissolved in water,...Ch. 7 - Prob. 7QAPCh. 7 - ow do chemists know that the ions behave...Ch. 7 - uppose you are trying to help your friend...Ch. 7 - Using the general solubility rules given in Table...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - Lead(II) nitrate is added to four separate beakers...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - Balance each of the following equations that...Ch. 7 - Balance each of the following equations that...Ch. 7 - For each of the following precipitation reactions,...Ch. 7 - A solution of zinc nitrate is mixed with a...Ch. 7 - What is a net ionic equation? What species are...Ch. 7 - Prob. 24QAPCh. 7 - Based on the general solubility rules given in...Ch. 7 - Write the balanced molecular, complete ionic, and...Ch. 7 - Many chromate salts are insoluble, and most have...Ch. 7 - The procedures and principles of qualitative...Ch. 7 - Many plants are poisonous because their stems and...Ch. 7 - Prob. 30QAPCh. 7 - What is meant by a strong acid? Are the strong...Ch. 7 - What is meant by a strong base? Are the strong...Ch. 7 - The same net ionic process takes place when any...Ch. 7 - Prob. 34QAPCh. 7 - If 1000 NaOH units were dissolved in a sample of...Ch. 7 - What is a salt? Give two balanced chemical...Ch. 7 - Write balanced equations showing how three of the...Ch. 7 - Prob. 38QAPCh. 7 - What salt would form when each of the following...Ch. 7 - Prob. 40QAPCh. 7 - Prob. 41QAPCh. 7 - Give an example of a simple chemical reaction that...Ch. 7 - What do we mean when we say that the transfer of...Ch. 7 - Prob. 44QAPCh. 7 - If atoms of the metal calcium were to react with...Ch. 7 - If oxygen molecules, were to react with magnesium...Ch. 7 - Prob. 47QAPCh. 7 - Prob. 48QAPCh. 7 - Prob. 49QAPCh. 7 - Prob. 50QAPCh. 7 - Prob. 51QAPCh. 7 - The reaction between ammonium perchlorate and...Ch. 7 - Identify each of the following unbalanced reaction...Ch. 7 - Prob. 54QAPCh. 7 - Prob. 55QAPCh. 7 - Prob. 56QAPCh. 7 - What is a synthesis or combination reaction? Give...Ch. 7 - What is a decomposition reaction? Give an example....Ch. 7 - Complete and balance each of the following...Ch. 7 - Prob. 60QAPCh. 7 - Prob. 61QAPCh. 7 - Prob. 62QAPCh. 7 - Balance each of the following equations that...Ch. 7 - Prob. 64QAPCh. 7 - Balance each of the following equations that...Ch. 7 - Prob. 66QAPCh. 7 - Distinguish between the molecular equation, the...Ch. 7 - Prob. 68APCh. 7 - Without first writing a full molecular or ionic...Ch. 7 - Complete and balance each of the following...Ch. 7 - Prob. 71APCh. 7 - Prob. 72APCh. 7 - Prob. 73APCh. 7 - Prob. 74APCh. 7 - For each of the following unbalanced molecular...Ch. 7 - Write the balanced molecular, complete ionic, and...Ch. 7 - What strong acid and what strong base would react...Ch. 7 - Prob. 78APCh. 7 - For the reaction 16Fe(s)+3S8(s)8Fe2S3(s), show how...Ch. 7 - Prob. 80APCh. 7 - Identify each of the following unbalanced reaction...Ch. 7 - Which of the following statements is/are true...Ch. 7 - Prob. 83APCh. 7 - Prob. 84APCh. 7 - Prob. 85APCh. 7 - Prob. 86APCh. 7 - Prob. 87APCh. 7 - For each of the following metals, how many...Ch. 7 - For each of the following nonmetals, how many...Ch. 7 - True or false? When solutions of barium hydroxide...Ch. 7 - Classify the reactions represented by the...Ch. 7 - When a sodium chromate solution and aluminum...Ch. 7 - Prob. 93APCh. 7 - Consider a solution with the following ions...Ch. 7 - Prob. 95APCh. 7 - For the following chemical reactions, determine...Ch. 7 - Prob. 97CPCh. 7 - hat kind of visual evidence indicates that a...Ch. 7 - Prob. 2CRCh. 7 - Prob. 3CRCh. 7 - Prob. 4CRCh. 7 - hat is meant by the driving force for a reaction?...Ch. 7 - xplain to your friend what chemists mean by a...Ch. 7 - efine the term strong electrolyte. What types of...Ch. 7 - ummarize the simple solubility rules for ionic...Ch. 7 - n general terms, what are the spectator ions in a...Ch. 7 - Describe some physical and chemical properties of...Ch. 7 - Prob. 11CRCh. 7 - What do we call reactions in which electrons are...Ch. 7 - What is a combustion reaction? Are combustion...Ch. 7 - Prob. 14CRCh. 7 - List and define all the ways of classifying...Ch. 7 - The element carbon undergoes many inorganic...Ch. 7 - Prob. 17CRCh. 7 - The reagent shelf in a general chemistry lab...Ch. 7 - Prob. 19CRCh. 7 - Prob. 20CRCh. 7 - Prob. 21CRCh. 7 - Prob. 22CRCh. 7 - Using the general solubility rules discussed in...Ch. 7 - Write the balanced net ionic equation for the...Ch. 7 - Prob. 25CR
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