What happens when a piece of(a) zinc metal is added to copper sulphate solution?(b) aluminium metal is added to dilute hydrochloric acid?(c) silver metal is added to copper sulphate solution?Also, write the balanced chemical equation if the reactionoccurs
Question
What happens when a piece of(a) zinc metal is added to copper sulphate solution?(b) aluminium metal is added to dilute hydrochloric acid?(c) silver metal is added to copper sulphate solution?Also, write the balanced chemical equation if the reactionoccurs
Solution
(a) When zinc metal is added to copper sulphate solution, a displacement reaction occurs. Zinc displaces copper from copper sulphate, resulting in the formation of zinc sulphate and copper metal. The balanced chemical equation for this reaction is:
Zn(s) + CuSO4(aq) -> ZnSO4(aq) + Cu(s)
(b) When aluminium metal is added to dilute hydrochloric acid, a reaction occurs producing aluminium chloride and hydrogen gas. The balanced chemical equation for this reaction is:
2Al(s) + 6HCl(aq) -> 2AlCl3(aq) + 3H2(g)
(c) When silver metal is added to copper sulphate solution, no reaction occurs. This is because silver is less reactive than copper and cannot displace copper from copper sulphate.
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