Question

7. What happens when copper sulphate crystals are heated? What change in colour do you observed ?what happens when they are moistened again?

Answer 1

Answer:

yes

Explanation:

(b) Copper sulphate is a blue coloured chemical. When it is heated, the blue colour disappears and it turns white. After is cools, if a few drops of water are put into the test tube, the copper sulphate turns blue again.