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Uploaded on Jan 28, 2008
Dry Ice is solid Carbon Dioxide. It has a melting point of -78,5 degrees Celsius, except it doesn't melt. It undergoes, what is called, sublimation, meaning that it goes directly from being a solid to becoming a gas. When you put Dry Ice in water, as water is a lot warmer than the Dry Ice, it induces sublimation, causing a fog of water vapor and Carbon Dioxide.
Warning: Science Content: Also, not mentioned in the video, it chemically reacts with the water to form Carbonic acid (H2CO3). This is a very weak acid with a first dissociation constant of 6,36 (pKa)