well here's a hint - copper sulphate is soluble in water, but calcium carbonate isn't.
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To separate copper sulfate from calcium carbonate, you can dissolve the mixture in water. Copper sulfate is soluble in water, while calcium carbonate is not. This solubility difference allows you to filter out the solid calcium carbonate and then evaporate the water to obtain copper sulfate crystals.
When calcium metal is added to a solution of copper sulfate, a single displacement reaction occurs. The more reactive calcium displaces the less reactive copper from the copper sulfate solution. This results in the formation of calcium sulfate and elemental copper. The balanced chemical equation for this reaction is: Ca + CuSO4 -> CaSO4 + Cu.
The thermal decomposition of calcium carbonate requires a higher temperature than copper carbonate because calcium carbonate is more stable and has a stronger chemical bond between calcium and carbonate ions. This higher temperature is needed to break these bonds and initiate the decomposition process. Additionally, calcium carbonate has a larger ionic size compared to copper carbonate which also contributes to the higher temperature needed for decomposition.
One way to separate chalk and copper sulfate is through filtration. The copper sulfate (being soluble) can be dissolved in water to form a solution, while the chalk remains as a solid. The mixture can then be filtered, allowing the solids (chalk) to be retained on the filter paper while the liquid (copper sulfate solution) passes through.
The scientific name for Copper Sulphate is copper(II) sulfate or cupric sulfate (CuSO4).
Calcium + Copper sulfate ----> Calcium sulfate + Copper It is a single displacement reactions. The products are Calcium Sulfate (white, insoluble) and fillings of copper(reddish-brown).