Question

A small amount of quick lime is added to water in a beaker.
(a) Name and define the type of reaction that has taken place .
(b) write balanced chemical equations for the above reaction. write the chemical name of products obtained
(c) State two observations that you will make in the reaction

Answer 1

a)reaction taking place is combination reaction.
A reaction in which two or more reactants combine to form a single product is known as combination reaction.
b) CaO+H²O____Ca(OH)²+heat
(Calcium hydroxide)
c) calcium oxide when reacts vigorously with water , produces slaked lime i.e calcium hydroxide.
A large amount of heat is evolved.
This is an exothermic reaction.

Answer 2

Explanation:

a)reaction taking place is combination reaction.

A reaction in which two or more reactants combine to form a single product is known as combination reaction.

b) CaO+H²O____Ca(OH)²+heat

(Calcium hydroxide)

c) calcium oxide when reacts vigorously with water , produces slaked lime i.e calcium hydroxide.

A large amount of heat is evolved.

This is an exothermic reaction.