Question

Question 5
Write an equation to show the reaction between Plaster of Paris and water.

Answer 1

Plaster of Paris when combines with water forms gypsum. Following reaction is involved:
${\text{CaSO}}_4.\frac{1}{2}{\text{H}}_2\text{O}+1\frac{1}{2}{\text{H}}_2\text{O}\to {\text{CaSO}}_4.2{\text{H}}_2\text{O}\text{Plaster of Paris}\text{Gypsum}$