Question

define water of crystalline give the chemical formula for two compound as examples how can it proved that water of crystalline makes a difference in the state and colour of the compound
explain for 3 marks
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Answer 1

Answer

Water of crystallisation is the fixed number of water molecules present in one formula unit of salt

eg. Washing soda (Na2Co3.10 H20); Gypsum (CaSO4.2H20)

• CuSO4.5H20-------->CuSO4+5H20

        (BLUE)                      (WHITE)      

• Na2CO3.10H20--------->Na2CO3+10H20

Answer 2

Answer:

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Explanation:

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