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

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(N/A) The chemical equation for the reaction of Plaster of Paris and water is as follows:
$CaSO_4 \cdot \frac{1}{2}H_2O + 1\frac{1}{2}H_2O \rightarrow CaSO_4 \cdot 2H_2O$
In this reaction,Plaster of Paris (calcium sulphate hemihydrate) reacts with water to form Gypsum (calcium sulphate dihydrate),which is a hard solid mass.

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