what is dry ice how is it prepared. answere fast
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Answer:
Explanation: the cold dense white mist produced by solid carbon dioxide in air, used for theatrical effects.
Answer:
Dry ice is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue. It is useful for preserving frozen foods where mechanical cooling is unavailable.
Dry ice is made from carbon dioxide gas. The carbon dioxide gas is pressurized and cooled to form liquid CO2. The liquid carbon dioxide is injected into either a block press or pelletizer. These dry ice production machines have chambers in which, once released to atmospheric pressure, the liquid carbon dioxide converts to dry ice snow and carbon dioxide gas. The carbon dioxide gas is recovered and converted back into liquid carbon dioxide.