Question

heating of copper sulphate salt
experiment , observation, Inference ​

Answer 1

$\huge{AnswEr}$

Heating the CuSO4.5H2O crystals causes then to loose the water of crystallisation that is the 5H2O part. It becomes anhydrous copper sulphate. Its colour changes to white from blue.

$CuSO_4.5H_2O \longrightarrow CuSO_4 +5H_2O$

Further heating the anhydrous copper sulphate may cause it to undergo decomposition and form a black substance which is copper(II) oxide along with it oxygen and sulphur dioxide gases are also formed.

$2CuSO_4\longrightarrow 2CuO + O_2 +2SO_2$

Answer 2

1) Heating the CuSO4.5H2O crystals causes then to loose the water of crystallisation that is the 5H2O part. It becomes anhydrous copper sulphate. Its colour changes to white from blue.

2) Further heating the anhydrous copper sulphate may cause it to undergo decomposition and form a black substance which is copper(II) oxide along with it oxygen and sulphur dioxide gases are also formed.

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