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Reaction of Magnesium with Carbon Dioxide


Magnesium is placed in a cavity in a block of dry ice. The magnesium is ignited and covered by another block of dry ice. Despite the absence of air, the magnesium continues to glow, due to its reaction with carbon dioxide. Because of this reaction, carbon dioxide cannot be used to extinguish magnesium fires.

The reaction products are white magnesium oxide and black carbon.


The size of the movie file is 5.1 MB and its duration is 79 seconds. The name of the movie file is "MAGCO2.MOV" and it is located in the folder "MOVIES/MAGCO2".

If your browser has not brought the movie into the above space (you might be running a version of Netscape earlier than 3.0 or not have the proper plug-in), clicking on the following will possibly access the movie. Play movie.

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