Chapter 4.3, Problem 4.5Q

(a)

Interpretation Introduction

Interpretation:

Whether the given reaction, ${\text{HNO3}}_{\text{(aq)}}{\text{ + KOH}}_{\text{(aq)}}\stackrel{}{\to }{\text{ KNO}}_{\text{3}}{}_{\text{(aq)}}{\text{ + H}}_{\text{2}}{\text{O}}_{\text{(aq)}}$ is a decomposition (D), combination (C), single-replacement (SR) or double-replacement (DR) reaction has to classified.

Concept Introduction:

Combination reaction (C) is a reaction in which two or more elements or compounds join together producing a product of different composition.  The general form of a combination reaction is $\text{A + B }\stackrel{}{\to }\text{ AB}$.

Decomposition reaction (D) is a reaction in which a single reactant undergoes decomposition and gives two or more products.  The general form of a decomposition reaction is $\text{AB }\stackrel{}{\to }\text{ A + B}$.

Single-replacement reaction (SR) is a reaction in which one atom replaces another in the compound and produces a new compound.  The general form of a single-replacement reaction is $\text{A + BC }\stackrel{}{\to }\text{ AC + B}$.

Double-replacement reaction (DR) is a reaction in which two compounds undergoes “change of partners”.  That is, two compounds react by exchanging atoms to produce two new compounds.  The general form of a double-replacement reaction is $\text{AB + CD }\stackrel{}{\to }\text{ AD + CB}$.

(b)

Interpretation Introduction

Interpretation:

Whether the given reaction, ${\text{Al}}_{\text{(s)}}{\text{ + 3NiNO}}_{\text{3}}{}_{\text{(aq)}}\stackrel{}{\to }{\text{ Al(NO}}_{\text{3}}{)}_{\text{3(aq)}}{\text{ + 3Ni}}_{\text{(s)}}$ is a decomposition (D), combination (C), single-replacement (SR) or double-replacement (DR) reaction has to classified.

Concept Introduction:

Refer part (a)

(c)

Interpretation Introduction

Interpretation:

Whether the given reaction, ${\text{KCN}}_{\text{(aq)}}{\text{ + HCl}}_{\text{(aq)}}\stackrel{}{\to }{\text{ HCN}}_{\text{(aq)}}{\text{ + KCl}}_{\text{(aq)}}$ is a decomposition (D), combination (C), single-replacement (SR) or double-replacement (DR) reaction has to classified.

Concept Introduction:

Refer part (a)

(d)

Interpretation Introduction

Interpretation:

Whether the given reaction, ${\text{MgCO}}_{\text{3}}{}_{\text{(s)}}\stackrel{}{\to }{\text{ MgO}}_{\text{(s)}}{\text{ + CO}}_{\text{2}}{}_{\text{(g)}}$ is a decomposition (D), combination (C), single-replacement (SR) or double-replacement (DR) reaction has to classified.

Concept Introduction:

Refer part (a)