Question

A student took a solution of copper sulphate in a beaker and put a clean iron nail into it
deft it for about an hour.
(a) Write a word equation showing this chemical change ?
(b) What is this reaction called?

Answer 1

Answer:

A: In chemistry, a word equation is a chemical reaction expressed in words rather than chemical formulas. A word equation should state the reactants (starting materials), products (ending materials), and direction of the reaction in a form that could be used to write a chemical equation.

B: When an iron nail is immersed in the solution of CuSO4 then that iron nail displaces Cu from the solution of CuSO4 as iron is more reactive than Cu respectively! Therefore, CuSO4 solution colour changes from blue to pale green [or simply green].

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Answer 2

a) iron(Fe) + copper sulphate (CuSO4) gives iron sulphate (FeSO4) + copper (Cu)

b) reaction is known as displacement reaction. In this reaction iron displace copper from copper sulphate solution because iron is more reactive than copper

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