Classify the following as physical or chemical changes. a.Moth balls gradually vaporize in a closet. b.Hydrofluoric acid attacks glass and is used to etch calibra- tion marks on glass laboratory utensils. c. A French chef making a sauce with brandy is able to boil off the alcohol from the brandy, leaving just the brandy flavoring. d. Chemistry majors sometimes get holes in the cotton jeans they wear to lab because of acid spills

Introductory Chemistry: An Active Learning Approach
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ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
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Chapter2: Matter And Energy
Section: Chapter Questions
Problem 2.5TC: Classify the following as homogenous or heterogeneous: aThe contents of the beaker on the left in...
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Classify the following as physical or chemical changes. a.Moth balls gradually vaporize in a closet. b.Hydrofluoric acid attacks glass and is used to etch calibra-
tion marks on glass laboratory utensils. c. A French chef making a sauce with brandy is able to boil
off the alcohol from the brandy, leaving just the brandy
flavoring. d. Chemistry majors sometimes get holes in the cotton jeans
they wear to lab because of acid spills
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