Plaster of paris is

(a). What is plaster of paris? Write the chemical formula of plaster of paris. (b) How is plaster of paris prepared? Write chemical equation of the reaction involved. (c) Explain why plaster of paris should be stored in a moisture-proof container. (d) State two important uses of plaster of paris.

Plaster of paris hardens by

The setting of plaster of paris involves

Setting of plaster of paris involves: