| 4 Results |
| Hydrogen + Chlorine Cannon (Movie/Animation, Audio/Visual (3)) |
| When a corked test tube containing a mixture of hydrogen and chlorine is struck by light from a burning magnesium ribbon, the resulting explosion propels the cork out of the test tube. |
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| Ozone: Absorbance of UV Light (Movie/Animation, Audio/Visual (3)) |
| Ozone is produced. Exposure to a shortwave ultraviolet source causes the ozone to cast a shadow against a fluorescent yellow background. |
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| Prophine and Protoporphyrin (Interactive Simulation (1)) |
| The WebWare molecules this month are from the article "Photochemotherapy: Light-Dependent Therapies in Medicine" by Edward P. Zovinka and Danielle R. Suneri. The first is a simple porphine, illustrating the ubiquitous four-nitrogen macrocycle, while the second is the protoporphyrin found in heme systems. |
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| Cannon (GCMP) (Interactive Simulation, Software (1)) |
| H2 and Cl2 cannon: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we observe the reaction of hydrogen and chlorine and explore some related reactions. The reaction involves a radical mechanism initiated by light. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material. |
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