How to cover a iron nail with copper using a chemical change.
The copper from the pennies mix with the acetic acid and forms the chemical compound copper acetate. The copper acetate coates the iron nail with copper.
1/4 cup acetic acid
A pinch of salt
10 to 20 copper pennies
An iron nail
- Pour the acetic acid into a jar. Add the salt.
- Add the copper pennies to the jar. Let it set for about 15 minutes. You'll find that the nail is coated with copper, and the pennies are bright and clean.