Oxidation-Reduction/ Activities Series

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PURPOSE: To learn and observe oxidation-reduction reactions and to determine where elements belong in an activity series. PROCEDURE: Gather the following materials: Paper towels, 24-well plate, plastic tweezers, and the Oxidation-Reduction Activity Series experiment bag. Please thoroughly read all instructions and gather all equipment/supplies before beginning experiment. 1. Create a data table similar to the one below named Data Table: Oxidation-Reduction Experiment. 2. Take a 24-well plate: a. In well A1: Place 10 drops of Sodium Sulfate, Na2SO4 b. In well A2: Place 10 drops of Magnesium Sulfate, MgSO4 c. In well A3: Place 10 drops of Zinc Nitrate, Zn(NO3)2 d. In well A4: Place 10 drops of Iron (III) Chloride, FeCl3 e. In well A5: Place 10 drops of Copper (II) Sulfate, CuSO4 3. Take the metal solids from your LabPaq; there should be one piece each of magnesium, zinc, and iron plus two pieces of lead. NOTE: Magnesium and lead oxidize very easily and an almost invisible oxidation layer may coat the metal. To insure good reactions you should scrape the surface of those metals with a pocketknife or remove the oxidation layer by rubbing the metal pieces with steel wool or something similar. Evidence that a reaction is taking place is the formation of bubbles or a coating on the metal immersed into the solution. The formation of bubbles will take place very quickly, but it may take a few minutes to see any coating on the metal. 4. Carefully use your tweezers to pick up and insert a piece of magnesium into the sodium sulfate (well A1). Record your observations. 5. Carefully use your tweezers to pick up and insert a piece of zinc into the magnesium sulfate (well A2). Record your observations. 6. Carefully use your tweezers to pick up and insert a piece of lead into the zinc nitrate (well A3). Record your observations. 7. Carefully use your

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