Determine whether each change is physical or chemical. What kind of property (chemical or physical) is demonstrated

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Determine whether each change is physical or chemical. What kind of property (chemical or physical) is demonstrated in each case?

(a) The evaporation of rubbing alcohol. 

(b) The burning of lamp oil. 

(c) The bleaching of hair with hydrogen peroxide. 

(d) The formation of frost on a cold night.

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