Answer:
Exothermic reaction: The reaction which releases heat after a reaction is called an exothermic reaction. As we can see in the above reaction the heat released in a reaction that's why the nature of the reaction is exothermic.
Step-by-step explanation:
The reaction of quick lime(CaO) with water to form lime water is an example of a combination reaction and the nature of the reaction is exothermic
Combination reaction: The reaction in which two or more than two substances combine to form one single substance is called a combination reaction.