Chapter 5, Problem 5.1E

Identify the reactants and products in each of the following reaction equations:

a. ${\text{CH}}_{\text{4}}\left(\text{g}\right)+2{\text{O}}_2\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)+{\text{2H}}_{\text{2}}\text{O}\left(\text{g}\right)$

b. $\text{2Al}\left(\text{s}\right)+{\text{3Cl}}_{\text{2}}\left(\text{g}\right)\to {\text{2AlCl}}_{\text{3}}\left(\text{s}\right)$

c. $\text{methane}+\text{water}\to \text{carbon}\text{monoxide}+\text{hydrogen}$

d. $\text{copper}\left(\text{II}\right)\text{oxide}+\text{hydrogen}\to \text{copper}+\text{water}$

Interpretation Introduction

(a)

Interpretation:

The reactants and products in the given equation are to be identified.

Concept introduction:

The substances that undergo a chemical change are known as reactants. These are written on the left side of the reaction. The substances that are produced in the chemical reaction are known as products. These are written on the right side of the reaction. An arrow is used to separate the products and reactants.

Answer to Problem 5.1E

The reactants and products in the given equation are ${\text{CH}}_{\text{4}}$, ${\text{O}}_2$ and ${\text{CO}}_{\text{2}}$, ${\text{H}}_{\text{2}}\text{O}$ respectively.

Explanation of Solution

The given reaction is shown below.

${\text{CH}}_{\text{4}}\left(\text{g}\right)+2{\text{O}}_2\left(\text{g}\right)\to {\text{CO}}_{\text{2}}\left(\text{g}\right)+{\text{2H}}_{\text{2}}\text{O}\left(\text{g}\right)$

The reactants are written on the left side of the arrow while the products are written on the right side of the arrow.

Hence, the reactants and products in the given equation are ${\text{CH}}_{\text{4}}$, ${\text{O}}_2$ and ${\text{CO}}_{\text{2}}$, ${\text{H}}_{\text{2}}\text{O}$ respectively.

Conclusion

The reactants and products in the given equation are ${\text{CH}}_{\text{4}}$, ${\text{O}}_2$ and ${\text{CO}}_{\text{2}}$, ${\text{H}}_{\text{2}}\text{O}$ respectively.

Interpretation Introduction

(b)

Interpretation:

The reactants and products in the given equation are to be identified.

Concept introduction:

The substances that undergo a chemical change are known as reactants. These are written on the left side of the reaction. The substances that are produced in the chemical reaction are known as products. These are written on the right side of the reaction. An arrow is used to separate the products and reactants.

Answer to Problem 5.1E

The reactants and products in the given equation are $\text{Al}$, ${\text{Cl}}_2$ and ${\text{AlCl}}_{\text{3}}$ respectively.

Explanation of Solution

The given reaction is shown below.

$\text{2Al}\left(\text{s}\right)+{\text{3Cl}}_{\text{2}}\left(\text{g}\right)\to {\text{2AlCl}}_{\text{3}}\left(\text{s}\right)$

The reactants are written on the left side of the arrow while the products are written on the right side of the arrow.

Hence, the reactants and products in the given equation are $\text{Al}$, ${\text{Cl}}_2$ and ${\text{AlCl}}_{\text{3}}$ respectively.

Conclusion

The reactants and products in the given equation are $\text{Al}$, ${\text{Cl}}_2$ and ${\text{AlCl}}_{\text{3}}$ respectively.

Interpretation Introduction

(c)

Interpretation:

The reactants and products in the given equation are to be identified.

Concept introduction:

The substances that undergo a chemical change are known as reactants. These are written on the left side of the reaction. The substances that are produced in the chemical reaction are known as products. These are written on the right side of the reaction. An arrow is used to separate the products and reactants.

Answer to Problem 5.1E

The reactants and products in the given equation are methane, water and carbon monoxide, hydrogen respectively.

Explanation of Solution

The given reaction is shown below.

$\text{methane}+\text{water}\to \text{carbon}\text{monoxide}+\text{hydrogen}$

The reactants are written on the left side of the arrow while the products are written on the right side of the arrow.

Hence, the reactants and products in the given equation are methane, water and carbon monoxide, hydrogen respectively.

Conclusion

The reactants and products in the given equation are methane, water and carbon monoxide, hydrogen respectively.

Interpretation Introduction

(d)

Interpretation:

The reactants and products in the given equation are to be identified.

Concept introduction:

The substances that undergo a chemical change are known as reactants. These are written on the left side of the reaction. The substances that are produced in the chemical reaction are known as products. These are written on the right side of the reaction. An arrow is used to separate the products and reactants.

Answer to Problem 5.1E

The reactants and products in the given equation are $\text{copper}\left(\text{II}\right)\text{oxide}$, hydrogen and copper, water respectively.

Explanation of Solution

The given reaction is shown below.

$\text{copper}\left(\text{II}\right)\text{oxide}+\text{hydrogen}\to \text{copper}+\text{water}$

The reactants are written on the left side of the arrow while the products are written on the right side of the arrow.

Hence, the reactants and products in the given equation are $\text{copper}\left(\text{II}\right)\text{oxide}$, hydrogen and copper, water respectively.

Conclusion

The reactants and products in the given equation are $\text{copper}\left(\text{II}\right)\text{oxide}$, hydrogen and copper, water respectively.