Chapter 13, Problem 1AYK

(a)

To determine

Match the chemical reaction $\text{2Mg}+{\text{O}}_{\text{2}}\to 2\text{MgO}$ with its appropriate name.

Answer to Problem 1AYK

The chemical reaction $\text{2Mg}+{\text{O}}_{\text{2}}\to 2\text{MgO}$ matched with option 4.

Explanation of Solution

A reaction in which two reactants combine to form a single product is known as a combination reaction. The chemical equation is,

$\text{A}+\text{B}\to \text{AB}$

The chemical reaction is,

$\text{2Mg}+{\text{O}}_{\text{2}}\to 2\text{MgO}$

It involves the combination of two reactants which are magnesium and oxygen to form a single product magnesium oxide. The chemical reaction is an example of a combination reaction.

The chemical reaction $\text{2Mg}+{\text{O}}_{\text{2}}\to 2\text{MgO}$ is a combination reaction.

Conclusion:

Therefore, the chemical reaction $\text{2Mg}+{\text{O}}_{\text{2}}\to 2\text{MgO}$ matched with option 4.

(b)

To determine

Match the chemical reaction ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}+3{\text{O}}_{\text{2}}\to 2{\text{CO}}_2+2{\text{H}}_{\text{2}}\text{O}$ with its appropriate name.

Answer to Problem 1AYK

The chemical reaction ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}+3{\text{O}}_{\text{2}}\to 2{\text{CO}}_2+2{\text{H}}_{\text{2}}\text{O}$ matched with option 5.

Explanation of Solution

A combustion reaction is a reaction which takes place in the presence of oxygen. The reactions are exothermic because a large amount of heat is produced in combustion reactions. The products formed in combustion reaction are an oxide and a water molecule in some cases.

The chemical reaction is,

${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}+3{\text{O}}_{\text{2}}\to 2{\text{CO}}_2+2{\text{H}}_{\text{2}}\text{O}$

The reaction is taking place in the presence of oxygen and produces carbon dioxide and a water molecule. The reaction is an example of the combustion reaction.

The chemical reaction ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}+3{\text{O}}_{\text{2}}\to 2{\text{CO}}_2+2{\text{H}}_{\text{2}}\text{O}$ is a combustion reaction.

Conclusion:

Therefore, the chemical reaction ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}+3{\text{O}}_{\text{2}}\to 2{\text{CO}}_2+2{\text{H}}_{\text{2}}\text{O}$ matched with option 5.

(c)

To determine

Match the chemical reaction $\text{HCl}+\text{NaOH}\to \text{HOH}+\text{NaCl}$ with its appropriate name.

Answer to Problem 1AYK

The chemical reaction $\text{HCl}+\text{NaOH}\to \text{HOH}+\text{NaCl}$ matched with option 2.

Explanation of Solution

A reaction in which two reactants are involved and changing of partners take place for both the reactants is known as double replacement reaction. The chemical equation is,

$\text{AB}+\text{CD}\to \text{AD}+\text{CB}$

The chemical reaction is,

$\text{HCl}+\text{NaOH}\to \text{HOH}+\text{NaCl}$

The $\left({\text{H}}^{+}\right)$ of an acid combines with $\left({\text{OH}}^{-}\right)$ of a base and the $\left({\text{Cl}}^{-}\right)$ of an acid combines with $\left({\text{Na}}^{+}\right)$ of a base. The changing of partners takes place and the reaction is an example of a doublereplacement reaction.

The chemical reaction $\text{HCl}+\text{NaOH}\to \text{HOH}+\text{NaCl}$ is a double replacement reaction.

Conclusion:

Therefore, the chemical reaction $\text{HCl}+\text{NaOH}\to \text{HOH}+\text{NaCl}$ matched with option 2.

(d)

To determine

Match the chemical reaction $\text{2HgO}\to \text{2Hg}+{\text{O}}_{\text{2}}$ with its appropriate name.

Answer to Problem 1AYK

The chemical reaction $\text{2HgO}\to \text{2Hg}+{\text{O}}_{\text{2}}$ matched with option 1.

Explanation of Solution

A reaction in which two or more products are formed from the decomposition of a single reactant is known as decomposition reaction. The chemical equation is,

$\text{AB}\to \text{A}+\text{B}$

The decomposition of $\left(\text{HgO}\right)$ leads to the formation of two products, $\left(\text{Hg}\right)$ and $\left({\text{O}}_{\text{2}}\right)$. The reaction is an example of the decomposition reaction.

The chemical reaction $\text{2HgO}\to \text{2Hg}+{\text{O}}_{\text{2}}$ is a decomposition reaction.

Conclusion:

Therefore, the chemical reaction $\text{2HgO}\to \text{2Hg}+{\text{O}}_{\text{2}}$ matched with option 1.

(e)

To determine

Match the chemical reaction $\text{Cu}+2{\text{AgNO}}_{\text{3}}\left(\text{aq}\right)\to 2\text{Ag}+\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ with its appropriate name.

Answer to Problem 1AYK

The chemical reaction $\text{Cu}+2{\text{AgNO}}_{\text{3}}\left(\text{aq}\right)\to 2\text{Ag}+\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ matched with option 3.

Explanation of Solution

A reaction in which one of the element gets replaced in a chemical reaction is known as single replacement reaction. The chemical equation is,

$\text{A}+\text{BC}\to \text{B}+\text{AC}$

The chemical reaction is,

$\text{Cu}+2{\text{AgNO}}_{\text{3}}\left(\text{aq}\right)\to 2\text{Ag}+\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$

The copper metal is replacing silver metal from its solution and the reaction is an example of a single replacement reaction. Only one substance is being replaced.

The chemical reaction $\text{Cu}+2{\text{AgNO}}_{\text{3}}\left(\text{aq}\right)\to 2\text{Ag}+\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ is a single replacement reaction.

Conclusion:

Therefore, the chemical reaction $\text{Cu}+2{\text{AgNO}}_{\text{3}}\left(\text{aq}\right)\to 2\text{Ag}+\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ matched with option 3.