What is the chemical formula of dry ice? (also known as cardice)

H₂O

CO₂

CH₄

HCOOH

Dry ice is the solid form of carbon dioxide. In temperatures above −78.5 °C (−109.3 °F) it will not melt but sublimate, that means transforming straight from solid form into gas one without liquid phase.

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Dave Herholz wikipedia → Dry ice

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