4.05 Chemical Reactions Lab Worksheet
Iron (III) and copper (II) sulfate solution
Fill a small test tube halfway with copper (II) sulfate solution. Add a 2.0 gram iron rod
to the solution and observe the reaction.
Lead (II) nitrate and potassium iodide solutions
Pour about 2.0 mL of lead (II) nitrate into the test tube. Add 5 to 10 drops of
potassium iodide solution to the test tube and record your observations of the
Magnesium metal and hydrochloric acid solution
Place one scoop of magnesium turnings into the test tube. Add hydrochloric acid
slowly and observe the reaction. Next, place a burning splint near the mouth of the
test tube to test for the presence of hydrogen gas.
Hydrochloric acid is corrosive; if you spill any on yourself flush it
immediately with water and notify your teacher.
Electrolysis of water
Use a U-tube with electrodes at each end, connected to a battery. Fill the U-tube
with water. Turning on the battery, observe the results at each electrode. Next, test
for hydrogen and oxygen gas produced at each end of the tube.
Place magnesium ribbon in a clean crucible (on a clay triangle above a Bunsen
burner). Heat until the magnesium begins to burn.