Chapter 9, Problem 106A

Classiy each of the reactions represented by th chemical equations in Question 105.

Interpretation Introduction

(a)

Interpretation:

The type of the given reaction needs to be determined.

${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}\left(\text{l}\right)\text{+}{\text{O}}_{\text{2}}\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)\text{+}{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)$

Concept introduction:

In a chemical reaction, the reactants are written on the left side of the equation and the product is written on the right side. The product and the reactants contain an arrow between them showing the proceeding of the reaction from the reactants to the products.

Reactions can be classified on the basis of the products they form such as synthesis reaction, decomposition reaction, combustion reaction, replacement reaction etc.

Answer to Problem 106A

The reaction,

${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}\left(\text{l}\right)\text{+}{\text{O}}_{\text{2}}\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)\text{+}{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)$ is a synthesis reaction.

Explanation of Solution

In the reaction,

${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}\left(\text{l}\right)\text{+}{\text{O}}_{\text{2}}\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)\text{+}{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)$, benzene burns in oxygen to produce heat, light, carbon dioxide and water.

Therefore, this reaction is a combustion reaction.

Interpretation Introduction

Interpretation:

The type of the given reaction needs to be determined.

$\text{CO}\left(\text{g}\right)\text{+}{\text{O}}_{\text{2}}\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)$

Concept introduction:

In a chemical reaction, the reactants are written on the left side of the equation and the product is written on the right side. The product and the reactants contain an arrow between them showing the proceeding of the reaction from the reactants to the products.

Reactions can be classified on the basis of the products they form such as synthesis reaction, decomposition reaction, combustion reaction, replacement reaction etc.

Answer to Problem 106A

The reaction, $\text{CO}\left(\text{g}\right)\text{+}{\text{O}}_{\text{2}}\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)$ is a synthesis reaction.

Explanation of Solution

In the reaction,

$\text{CO}\left(\text{g}\right)\text{+}{\text{O}}_{\text{2}}\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)$, carbon monoxide reacts with oxygen to produce carbon dioxide. Therefore, this is a type of synthesis reaction.

Interpretation Introduction

Interpretation:

The type of the given reaction needs to be determined.

${\text{Cl}}_{\text{2}}\left(\text{g}\right)\text{+}\text{NaBr}\left(\text{s}\right)\to \text{NaCl}\left(\text{s}\right)\text{+}{\text{Br}}_{\text{2}}\left(\text{g}\right)$

Concept introduction:

In a chemical reaction, the reactants are written on the left side of the equation and the product is written on the right side. The product and the reactants contain an arrow between them showing the proceeding of the reaction from the reactants to the products.

Reactions can be classified on the basis of the products they form such as synthesis reaction, decomposition reaction, combustion reaction, replacement reaction etc.

Answer to Problem 106A

The reaction,

${\text{Cl}}_{\text{2}}\left(\text{g}\right)\text{+}\text{NaBr}\left(\text{s}\right)\to \text{NaCl}\left(\text{s}\right)\text{+}{\text{Br}}_{\text{2}}\left(\text{g}\right)$ is a single replacement reaction.

Explanation of Solution

In the reaction,

${\text{Cl}}_{\text{2}}\left(\text{g}\right)\text{+}\text{NaBr}\left(\text{s}\right)\to \text{NaCl}\left(\text{s}\right)\text{+}{\text{Br}}_{\text{2}}\left(\text{g}\right)$, Chlorine reacts with Sodium bromide to give sodium chloride and dibromide.

Therefore, this is a single replacement reaction.

Interpretation Introduction

Interpretation:

The type of the given reaction needs to be determined.

${\text{CaCO}}_{\text{3}}\left(\text{s}\right)\to \text{CaO}\left(\text{s}\right)\text{+}{\text{CO}}_{\text{2}}\left(\text{g}\right)$

Concept introduction:

In a chemical reaction, the reactants are written on the left side of the equation and the product is written on the right side. The product and the reactants contain an arrow between them showing the proceeding of the reaction from the reactants to the products.

Reactions can be classified on the basis of the products they form such as synthesis reaction, decomposition reaction, combustion reaction, replacement reaction etc.

Answer to Problem 106A

The reaction,

${\text{CaCO}}_{\text{3}}\left(\text{s}\right)\to \text{CaO}\left(\text{s}\right)\text{+}{\text{CO}}_{\text{2}}\left(\text{g}\right)$ is a decomposition reaction.

Explanation of Solution

In the reaction,

${\text{CaCO}}_{\text{3}}\left(\text{s}\right)\to \text{CaO}\left(\text{s}\right)\text{+}{\text{CO}}_{\text{2}}\left(\text{g}\right)$, Calcium carbonate decomposes to generate calcium oxide and carbon dioxide.

Therefore, this is a type of decomposition reaction.