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Dry ice sublimes left on a desk what kind of changephysical or chemical?
Wiki User
∙ 15y ago
It is physical, it changes from solid to gas (sublimation).
This is not a chemical change as it is still CO2 whether a solid or gas. The heat to make the change may be provided by the Sun or by warmer matter around the dry ice. At normal atmospheric pressure, liquid CO2 is unstable, which is why sublimation occurs.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoI just had this question for a chemistry and it is a physical change
Wiki User
∙ 12y agoTemperature is a physical change- it can be undone.
Wiki User
∙ 15y agoPhysical--the dry ice heated up and vaporized, but it's CO2 in both states.
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