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Question

On the basis of the reactivity series of metals, predict how these metals will react with each of the following salt solutions:

Metals: magnesium, zinc, copper, iron, and potassium

Salt solutions: magnesium sulphate, zinc sulphate, copper sulphate, iron sulphate,and potassium sulphate

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Solution

Magnesium will replace metals from Copper sulfate, Zinc sulfate, and Iron sulfate.
Mg+CuSO4MgSO4+Cu
Mg+ZnSO4MgSO4+Zn
Mg+FeSO4MgSO4+Fe
Mg+K2SO4NoReaction
Mg+MgSO4NoReaction
Mg+CuSO4MgSO4+Cu

Zinc will replace metals from Copper sulfate and Iron sulfate.
Zn+CuSO4ZnSO4+Cu
Zn+FeSO4ZnSO4+Fe
Zn+MgSO4NoReaction
Zn+ZnSO4NoReaction
Zn+K2SO4NoReaction

Copper is less reactive and will not replace metals from their solution.
Cu+CuSO4NoReaction
Cu+FeSO4NoReaction
Cu+MgSO4NoReaction
Cu+ZnSO4NoReaction
Cu+K2SO4NoReaction

Iron will replace Copper sulfate solution.
Fe+CuSO4FeSO4+Cu
Fe+FeSO4NoReaction
Fe+MgSO4NoReaction
Fe+ZnSO4NoReaction
Fe+K2SO4NoReaction

Potassium is the most reactive and will replace all metals from their solution
2K+CuSO4K2SO4+Cu
2K+MgSO4K2SO4+Mg
2K+ZnSO4K2SO4+Zn
2K+FeSO4K2SO4+Fe
2K+K2SO4NoReaction


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