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A student took a solution of copper sulphate in a beaker andput 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 a word equation for the chemical change, if any.
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1 Answer. 1. º Colour of the solution in the beaker changes from blue to green. 2 * A brown coloured deposit is found on the surface of the iron nail. ... The changes are chemical in nature as new substances, iron sulphate (green) and copper (brown) are formed.
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