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Question 1: Classify each of the following as a physical or a chemical property. Give an...

Question 1: Classify each of the following as a physical or a chemical property. Give an explanation in terms of the compositions to support your answer. a) The boiling point of a certain alcohol is 78oC. b) Sugar ferments to form alcohol. c) Burning of cookies in oven.

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Answer #1

a) The boiling point of a certain alcohol is 78oC is a physical property.

Boiling point does not change the chemical properties of alcohol.

b) Sugar ferments to form alcohol is a chemical property.

Here fermentation of sugar involves formation of new substance i.e alcohol. Hence it is a chemical property.

c) Burning of cookies in oven is a chemical property.

Baking cookies involves reactions that create a new item with a chemical composition that is different than that of the original parts.

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