Question

Explain the following process events

put two or three iron nails in the blue solutions of copper sulphate and after 15 to 20 minutes the colour of the solution green ​

Answer 1

Explanation:

When two or three iron nails are kept immersed in copper sulphate solution, we can see that after 15 to 20 minutes a slight colour change will take place. And after observing it for 1 or 2 days we can see that the copper sulphate solution changes into green colour . And we can also see that the iron nail which was kept immersed on the copper sulphate solution have a brown coating in it. This is a chemical change . The blue coloured copper sulphate solution changes into green coloured iron sulphate solution. And the iron nail contains a brown coating in it which is known as copper. This can be written in a chemical formula

⇒ CuSO4 + Fe = FeSO4 + Cu

HOPE THIS HELPS........

Answer 2

Answer:

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