what gas evolves in the Thermal decomposition of copper sulphate pentahydrate?
Answers
Answer:
Hydrated copper sulfate has 5 molecules of water of crystallization and when it is heated it loses these water molecules become anhydrous and from blue color to colorless form.
What happens when you mix copper sulphate and water?
The colour change on adding water to anhydrous copper(II) sulfate has been used as a test for the presence of water in a liquid. The more observant should notice that the addition of water to anhydrous copper(II) sulfate is exothermic, as the tube becomes noticeably hot if the water is added very slowly.
Is heating copper sulfate pentahydrate a physical or chemical change?
By heating copper(II) sulfate pentahydrate until it was white and contained no more water, you undergo a chemical change. The change in color in this situation also indicates a chemical change, but a change in color doesn't always entail a chemical change.