Chapter 9, Problem 88A

Interpretation Introduction

(a)

Interpretation:

The chemical reaction for the following single replacement reaction needs to be determined.

$\text{Nickel}\text{+}\text{Magnesium}\text{chloride}\to$

Concept introduction:

In a single-displacement reaction, the displacement of atom of an element by the atoms of another element takes place. The replacement depends upon their reactivity. One example showing this type of reaction is,

$\text{A}\text{+}\text{BX}\to \text{AX}\text{+}\text{B}$

Answer to Problem 88A

The reaction will not take place. So, the chemical equation will be

$\text{Ni}\text{+}{\text{MgCl}}_2\to \text{NR}$

Explanation of Solution

To know the replacement of metal by another metal, the activity series of metals must be followed. Activity series of metals contains a list of metals with decreasing chemical reactivity. Highly reactive metal replaces the least reactive metals from a compound. Magnesium is more reactive than nickel. So, nickel cannot replace magnesium from magnesium chloride. So, the given reaction will not take place. So, the chemical equation is as follows:

$\text{Ni}\text{+}{\text{MgCl}}_2\to \text{NR}$

(b)

Interpretation Introduction

Interpretation:

The chemical reaction for the single replacement reaction needs to be determined.

$\text{Calcium}\text{+}\text{copper}\text{(II)}\text{bromide}\to$

Concept introduction:

In a single-replacement reaction, the replacement of atom of an element by the atoms of another element takes place. The replacement depends upon their reactivity. One example showing this type of reaction is as follows:

$\text{A}\text{+}\text{BX}\to \text{AX}\text{+}\text{B}$

Answer to Problem 88A

The reaction occurs and the chemical equation is as follows:

$\text{Ca}\text{+}{\text{CuBr}}_{\text{2}}\to {\text{CaBr}}_{\text{2}}+\text{Cu}$

Explanation of Solution

To know the replacement of metal by another metal, the activity series of metals must be followed. Activity series of metals contains a list of metals with decreasing chemical reactivity. Highly reactive metal replaces the least reactive metals from a compound. Calcium is more reactive than copper. So, it can replace copper from copper (II) bromide. So, the reaction will occur and the chemical equation is,

$\text{Ca}\text{+}{\text{CuBr}}_{\text{2}}\to {\text{CaBr}}_{\text{2}}+\text{Cu}$

(c)

Interpretation Introduction

Interpretation:

The chemical reaction for the following single replacement reaction needs to be written, if the reaction occurs.

$\text{Potassium}\text{+}\text{Aluminium}\text{nitrate}\to$

Concept introduction:

In a single-replacement reaction, the replacement of atom of an element by the atoms of another element takes place. The replacement depends upon their reactivity. One example showing this type of reaction is,

$\text{A}\text{+}\text{BX}\to \text{AX}\text{+}\text{B}$

Answer to Problem 88A

The chemical reaction will take place and the chemical equation is,

$\text{3K}\text{+}{\text{Al(NO}}_{\text{3}}\text{)}{}_{\text{3}}\to 3{\text{KNO}}_{\text{3}}+3\text{Al}$

Explanation of Solution

To know the replacement of metal by another metal, the activity series of metals must be followed. Activity series of metals contains a list of metals with decreasing chemical reactivity. Highly reactive metal replaces the least reactive metals from a compound. Potassium is more reactive than aluminium. So, it can replace aluminium from aluminium nitrate. So, the chemical reaction will occur and the chemical equation is,

$\text{3K}\text{+}{\text{Al(NO}}_{\text{3}}\text{)}{}_{\text{3}}\to 3{\text{KNO}}_{\text{3}}+3\text{Al}$

(d)

Interpretation Introduction

Interpretation:

The chemical reaction for the following single replacement reaction if the reaction occurs needs to be determined.

$\text{Magnesium}\text{+}\text{Silver}\text{nitrate}\to$

Concept introduction:

In a single-replacement reaction, the replacement of atom of an element by the atoms of another element takes place. The replacement depends upon their reactivity. One example showing this type of reaction is,

$\text{A}\text{+}\text{BX}\to \text{AX}\text{+}\text{B}$

Answer to Problem 88A

The chemical reaction occur and the chemical equation is,

$\text{Mg}\text{+}2{\text{AgNO}}_3\to {\text{Mg(NO}}_{\text{3}}{\text{)}}_2+2\text{Ag}$

Explanation of Solution

To know the replacement of metal by another metal, the activity series of metals must be followed. Activity series of metals contains a list of metals with decreasing chemical reactivity. Highly reactive metal replaces the least reactive metals from a compound. Magnesium is more reactive than silver. So, it can replace silver from silver nitrate and thus a chemical reaction takes place and the chemical equation for the reaction is,

$\text{Mg}\text{+}2{\text{AgNO}}_3\to {\text{Mg(NO}}_{\text{3}}{\text{)}}_2+2\text{Ag}$