Question

What type of chemical reaction is taking place $Ca{\left( {OH} \right)_2}\left( s \right) + 2HCl\left( {aq} \right) - > CaC{l_2}\left( {aq} \right) + 2{H_2}O\left( I \right)$

Answer 1

Hint : A chemical reaction occurs when the bonds between reactant molecules are broken and new bonds are formed between product molecules, resulting in the formation of new material.

Complete Step By Step Answer:
For me, it looks like a neutralization reaction.
Salt and water have resulted from the reaction between an acid and an alkali. Here base, that is $Ca{(OH)_2}$ reacts with acid that is HCl and forms salt that is $CaC{l_2}$ and water ${H_2}O$. A neutralization reaction is a chemical reaction that occurs when an acid and a base react quantitatively to produce salt and water as products. In a neutralisation reaction, a mixture of ${H^ + }$ and $O{H^ - }$ ions combine to form vapour. An acid-base neutralization reaction is the most common form of a neutralization reaction.
Acid + Base → Salt + Water
The reaction depicted above is a neutralization reaction in its broadest sense. The reaction between an acid and a base often results in the formation of salt and water, which is known as neutralization. A chemical reaction occurs when an acid and an alkali are combined. The neutralization reaction happens when the acid and alkali balance each other out. Neutralization can be accomplished in stages. Acid rain is the product of a neutralization reaction. When a strong acid and weak base are neutralized, the resulting pH is less than $7$, and when a strong base neutralizes a weak acid, the resulting pH is greater than $7$.

Note :
When a solution is neutralized, equivalent weights of acid and base combine to form salts. The amount of acid required is equal to one mole of protons (${H^ + }$), and the amount of base required is equal to one mole of ($O{H^ - }$). Since salts are formed by neutralization reactions in which the weights of the acids and bases are equal, N parts of acid will always neutralize N parts of the base.