Question

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

Plaster of Paris should be stored in a moisture-proof container. Explain why?

A compound which is prepared from gypsum has the property of hardening when mixed with proper quantity of water. Identify the compound. Write chemical equation to prepare the compound. Mention one important use of the compound.

A doctor used a white powder to make a cast for a patient's fractured hand. The powder was mixed with water and quickly hardened into a solid. Later, the doctor explained that this substance is commonly used for making molds, sculptures, and smooth wall surfaces.