Zinc and Copper Sulfate Displacement
Zn + CuSO4 → ZnSO4 + Cu
Overview
Zinc is oxidized from Zn⁰ to Zn²⁺ while copper is reduced from Cu²⁺ to Cu⁰ in this classic redox displacement reaction. Zinc loses two electrons (oxidation) that are gained by copper ions (reduction). The blue CuSO₄ solution becomes colorless as copper metal deposits on the zinc.
Participants
| Role | Substance | Coefficient | State |
|---|---|---|---|
| Reactant | Zinc Zn | 1 | (s) |
| Reactant | Copper(II) Sulfate CuSO₄ | 1 | (aq) |
| Product | Zinc Sulfate ZnSO₄ | 1 | (aq) |
| Product | Copper Cu | 1 | (s) |
Everyday Example
This reaction is the basis of the Daniell cell, one of the earliest practical batteries, invented in 1836.
Industrial Importance
Cementation of copper by zinc or iron is used in hydrometallurgical copper recovery from mine drainage and leach solutions.
Properties
- Type
- Redox
- Reversible
- No
- Energy
- Exothermic
- ΔH
- -218.7 kJ/mol
Related Reactions
Aqua Regia Dissolving Gold
Bleaching with Sodium Hypochlorite
Cerium(IV) Reduction by Iron(II)
Chlorine Oxidation of Bromide
Chromate-Dichromate Equilibrium
Contact Process SO₂ Oxidation
Copper Displaced by Iron
Copper Oxidation by Nitric Acid
Copper Patina Formation (Verdigris)
Copper Reduction of Silver Ion
Frequently Asked Questions
What is the equation for Zinc and Copper Sulfate Displacement?
The balanced equation is: Zn + CuSO₄ → ZnSO₄ + Cu.
What type of reaction is Zinc and Copper Sulfate Displacement?
Zinc and Copper Sulfate Displacement is a redox reaction.
Is Zinc and Copper Sulfate Displacement exothermic or endothermic?
Zinc and Copper Sulfate Displacement is exothermic (releases energy). The enthalpy change (ΔH) is -218.7 kJ/mol.