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The forming of the carbon elemental form is a chemical change. The deposition on the flask is likely a physical change, although it may not be any change at all (solid being the STP phase of carbon).
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThis depends entirely on the process by which the deposit is formed.
If it is formed by the combustion of a carbohydrate or another process that does not start with elemental carbon, then the change is a chemical one. If the deposition of carbon starts with carbon vapor then it is a physical change.
Wiki User
∙ 7y agoForming a compound is a chemical process.
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