- Prepare a saturated solution of copper sulphate and to divide it into two parts, poured into two round bottom flasks.
- Put a few granules of zinc into the first flask.
- Place several steel pushpins into the second flask.
- Leave the flasks for a few hours.
- Observe the change of the color of the solutions and precipitation of copper on the surface of metals.
- For the reaction to proceed better, the solutions may be heated or acidified.