Dou5ballmelizer Dou5ballmelizer

02-06-2016
Chemistry

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Which statement describes a physical change?
a. A carton of milk souring
b. A piece of silver flatware tarnishing
c. Dry ice subliming into carbon dioxide
d. Two clear solutions forming a precipitate when mixed

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taskmasters taskmasters

03-06-2016

The correct answer C. Dry ice subliming to carbon dioxide is an example of a physical change. This type of change is when only the appearance changed but the substance is still the same. It is the opposite of a chemical change where a new substance is formed from this change.

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