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Write a chemical equation to show the re...

Write a chemical equation to show the reaction of plaster of Paris with water. Give any two uses of plaster of Paris.

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### Step-by-Step Solution: 1. **Identify the Chemical Formula of Plaster of Paris**: Plaster of Paris is chemically known as Calcium Sulfate Hemihydrate. Its chemical formula is represented as \( \text{CaSO}_4 \cdot \frac{1}{2} \text{H}_2\text{O} \) or \( \text{CaSO}_4 \cdot 0.5 \text{H}_2\text{O} \). 2. **Write the Reaction with Water**: When Plaster of Paris reacts with water, it forms Gypsum, which is Calcium Sulfate Dihydrate. The reaction can be represented as: \[ ...
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Knowledge Check

  • Plaster of Paris is

    A
    `Ca SO _(4) . 2 H _(2) O`
    B
    `Ca SO _(4) . (1)/(2) H _(2)O`
    C
    `CaSO _(4) . 5 H _(2) O`
    D
    `CaSO _(4) . H _(2) O`

  • Plaster of Paris is

    A
    calcium sulphate `(CaSO_(4))`
    B
    calcium sulphate hemihydrate`(CaSO_(4).1//2H_(2)O)`
    C
    barium sulphate `(BaSO_(4))`
    D
    none of these .

  • Plaster of paris is

    A
    `CaSO_(4).(1)/(2)H_(2)O`
    B
    `CaSO_(4).2H_(2)O`
    C
    `CaSO_(4).CaCO_(3)`
    D
    `CaSO_(4).5H_(2)O`

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