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Write an equation to show the reaction between the Plaster of Paris and water.
Answer:
On putting into water, Plaster of paris (POP) turns into hard mass after some time, this is due to formation of gypsum.
The reaction between plaster of paris and water can be written as:
CaSO
4
.1/2H
2
O + 1
1/2
H
2
O → CaSO
4
.2H
2
O
