Question

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a)chemical equation to make plaster of paris .(clue :-gypsum)
b)which metal is liquid in room temperature.(clue :-m.p will be less than 32)

Answer 1

Explanation:

a) formula is CaSO4. 1/2 H2O.

Answer 2

Answer:

a-----CaSO4 . 1/2H2O

b----- mercury.

Explanation:

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