Question

2. a) What happens when water is added to Calcium oxide salt taken in a beaker?
b) Give the chemical equation for the reaction involved.
c) What is the practical application of this reaction? Give the chemical equation for the reaction involved.

Answer 1

Answer:

A].When water is added to calcium oxide (quicklime), it will be converted to calcium hydroxide (slaked lime) with the liberation of enormous amount of heat. It is an exothermic reaction. Calcium hydroxide is an alkali.

B]. Chemical Equation:

Zn(s)+2HCL(aq). → ZnCl2(aq)+H2(g)