Question

A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour. (a) What changes do you expect? (b) Are these changes physical or chemical in nature? (C) Write a word equation for the chemical change, if any. ​

Answer 1

Answer:

Fe + CuSO⁴ - FeSO⁴ + Cu

Explanation:

a) We will notice that the colour of the solution changes from blue to light green and some substance is present on the nail which is copper

b) These changes are chemical, they chemically reacted by close contact

c) Fe (Iron) + CuSO⁴ (copper sulphate) {light blue} -> FeSO⁴ {Green} + Cu