Redox Mini-Lab
1. Attach one of the alligator clips to a paper clip and dip the paper clip into the solution. Write your
observations and sketch the paper clip before you dipped it in and after you dipped it in. What do you
think is happening to the paper clip?
2. The solution is copper sulfate. What is the formula for copper sulfate? What is the dissociation
equation for copper sulfate?
3. Attach the other paperclip to the other alligator clip. Attach one clip to each of the leads on the 9V
battery. Put the paper clips in the solution and bring them close together. If no bubbles are forming after
a few seconds, touch the paper clips together briefly. Write down your observations.
4. Remove both paperclips from the solution. Draw what you see. Then, switch the leads on the 9V
battery, so that the clips are on opposite leads. Write your observations.
5. The redox half-equation is Cu2+ → Cu(s). One side of this reaction has two electrons on it. Choose
which side, the product or the reactant, and explain why.