12. Akhil 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 chemical in nature?
(c) Write the equation for the chemical change.
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1)I will not good to leave it
2) the changes expect is non-denominational, and nimble
3)⅘67
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