Student will use their skills of observation to determine similarities and differences in the two gases. Students will take a burning match and expose both gases to the flame to determine their reaction. The teacher will instruct students to look for similarities and differences in the two gases as they are produced and tested. Set up the materials for collecting Hydrogen as in the picture above. Put 3-5 pieces of zinc into the large test tube.
Half fill the plastic jug with water.
Have 5ml of HCl ready in a 50ml beaker. One student needs to keep their hands dry to light the matches. You should now add the 5ml of HCl to the Zinc and stopper the large test-tube. The open end of the rubber tubing should be placed in the jug of water. An invisible gas begins to form immediately.