a)Crystals of a substance changed their color on heating in a closed test tube but regained it after sometime when they were allowed to cool down. name the substance and write its formula and explain the phenomenon involved. b) Name the compound whose one formula unit is associated with 10 water molecules. How is it prepared? Give equations of related reactions. Give two uses of the Compound.

Asked by  | 15th Sep, 2012, 05:50: PM

Expert Answer:

a)CuSO4  (copper sulphate).Dehydration occur.

b)CuSO4 .10H2O

Answered by  | 17th Sep, 2012, 10:12: AM

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