Part I:

Materials:

Procedure:

  1. Add 30 mL of copper sulfate solution (CuSO4(aq)) to a 100 mL beaker
  2. Place an iron nail into the solution
  3. Set aside for about 20 minutes
  4. Carefully lift the nail out of the solution with a pair of tongs
  5. Place it on a piece of filter paper and observe
  6. Wash hands thoroughly.

 

 

 

 

Part II:

Materials:

Procedure:

  1. Receive a 10 cm strip of magnesium (Mg) from the teacher
  2. Hold one end of the Mg strip with a pair of tongs
  3. Light a burning splint
  4. Use the burning splint to light the free end of the Mg strip
  5. Hold the Mg strip over a watch glass to collect the residue

DO NOT LOOK DIRECTLY INTO THE FLAME!

  1. Observe the residue.