Question

What happens when a piece of zinc metal is added to?

Answer 1

Explanation:

Zinc is more reactive than copper. So, here , on adding zinc to CuSO4 solution, zinc displaces copper from copper sulphate & forms zinc sulphate solution. This is indicated by colour change from blue to colourless. CuSO4 solution has a blue colour while ZnSO4 solution is colourless.

Answer 2

Answer:

i am assuming here that it's reaction is taking place with copper

Explanation:

Zinc is more reactive than copper. So, here , on adding zinc to CuSO4 solution, zinc displaces copper from copper sulphate & forms zinc sulphate solution. This is indicated by colour change from blue to colourless. CuSO4 solution has a blue colour while ZnSO4 solution is colourless.

Chemical equation -

Zn(s) + CuSO4(aq) -> Cu(s) + ZnSO4 (aq).

Type of reaction -

1.It's a displacement reaction.

2.It's a redox reaction. Oxidation number of Cu decreases from 2 to 0 so it's reduced. Oxidation number of Zn increases from 0 to 2 so it's oxidised.