Copper sulfate solution starts of a blue colour. When Iron metal is added to the solution a REDOX reaction begins in which the copper is reduced (gains electrons) to become copper metal and the iron is oxidised (loses electrons) to become iron ions. When the iron ions go into solution, it will change to a green colour which is the colour of iron (II) sulfate. As a general principle, a more reactive metal will displace a less reactive metal from solution by the process described above.
Iron sulfate dissolves in water to make an aqueous solution of iron sulfate.
A water solution of iron sulfate is obtained.
The iron will react with the copper sulfate, producing iron sulfate and elemental copper.
Iron is more reactive than copper, so the copper precipitates out of the solution by sticking to the iron. For example, if you have a test tube with a solution of copper (II) sulfate and put an iron nail into it, the iron will react with the solution to form iron (II) sulfate and the copper will come out of the solution and stick to the iron.
When an iron nail is dipped in the copper sulfate solution then iron displaces copper from the copper sulfate because iron is more reactive than copper.
Copper sulfate solution starts of a blue colour. When Iron metal is added to the solution a REDOX reaction begins in which the copper is reduced (gains electrons) to become copper metal and the iron is oxidised (loses electrons) to become iron ions. When the iron ions go into solution, it will change to a green colour which is the colour of iron (II) sulfate. As a general principle, a more reactive metal will displace a less reactive metal from solution by the process described above.
Iron sulfate dissolves in water to make an aqueous solution of iron sulfate.
A water solution of iron sulfate is obtained.
The iron will react with the copper sulfate, producing iron sulfate and elemental copper.
This is a homogeneous solution.
Why does the colour of copper sulphate solution change when an iron nail is dipped in it? When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour. Therefore, the blue colour of copper sulphate solution fades and green colour appears.
It may seem like the iron rusts, but it doesn't. The chemical formula for copper sulfate is CuSO4, or, 1 copper atom, 1 sulfur atom, and 4 oxygen atoms to each molecule. When the iron is placed in the solution of copper sulfate, it replaces the copper in the solution, turning copper sulfate into iron sulfate (FeSO4) and pure copper collects on the iron. This can be proved by removing the copper and seeing that the iron has lost a lot of its mass, as in, it lost mass to the copper sulfate. The iron (steel wool) takes on a pinkish color which is metallic copper deposited when the solution forms iron sulfate.
Iron is more reactive than copper, so the copper precipitates out of the solution by sticking to the iron. For example, if you have a test tube with a solution of copper (II) sulfate and put an iron nail into it, the iron will react with the solution to form iron (II) sulfate and the copper will come out of the solution and stick to the iron.
Yellowish
The iron which is a more electrochemically active metal gets plated with copper and iron sulfate is formed
Zinc sulfate is colorless to white in appearance.