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actually blue salt of copper sulphate is chemically copper sulphate penta hydrate( CuSO4.5H2O ). blue coloure is due to thiese 5 moles of water . by heating this water evaporates and leaving CuSO4 which is colourless

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Q: When blue salt of copper sulphate is heated it becomes colourless why?
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What happens if Copper Sulphate penta-hydrate is heated?

Copper sulphate pentahydrate loses water of crystallisation and becomes white amorphous anhydrous copper sulphate.


Why blue crystals of copper sulphate on heating turn colourless?

The formula of the blue crystals of copper sulphate is CuSO4.5H2O. When they are heated mildly, the water from the crystals evaporate, giving just CuSO4. This 'anhydrous' form of copper (II) sulphate is white in colour.


Why when blue salt copper sulphate is heated it becomes colourless?

Blue copper(II) sulfate (CuSO4), when heated, loses 5 water molecules per formula unit of water of crystallization. Its lattice structure collapses, giving it different physical properties, i.e. color.


When Copper sulphate crystal is heated?

they dissolve or dilute


What colour does hydrous copper sulphate turn when heated?

blue


What happens when copper sulphate crystal is heated?

synthesis of coppersulfhydryloxalate


What happens when copper sulfate and sodium hydroxide are heated?

it starts changing to white because the colour of the copper sulphate solution becomes whote during the process of evaporation


When blue colour copper sulphate crystal are heated?

when blue Copper sulphate is heated, it loses its water part of crystallisation and tuns into white, anhydrous copper sulphate crystal


What happens when sulphuric acid is mixed with copper oxide and heated?

It makes copper sulphate + water :)


What happensd when copper sulphate are heated?

The reaction is;CuSO4 = CuO + SO3


What are some reversible chemical reactions?

Examples of reversible chemical reactions - hydrous copper sulphate (blue) heated becomes anhydrous copper sulphate (white). When water is added, the reaction is reversed. Nitrogen dioxide (reddish brown gas) reacts to form colourless dinitrogen tetroxide, this reaction can go the other way also. Hydrogen and oxygen react to form water. This molecule can be split back into hydrogen and oxygen through electrolysis.


What happens to copper sulphate when heated?

It turns into a white powder and when water is then again added to the deydrated copper sulphate it turns back to its original colour