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Answered

Grinding quartz crystals down to produce sand is an example of a

Achange of state.
Cchemical reaction.
Bchemical change.
Dphysical change. Please select the best answer from the choices provided A B C D

Verified Answer :

gbriden

The answer is D because the chemical makeup has not changed. It is still the same quartz just looks different. 

Hope that helps! God bless!

LearnGrow

Grinding quartz crystals down to produce sand is an example of a physical change. Correct answer: D Physical change is a change of the form of a chemical substance, but not its chemical composition. And this is exactly what grinding quartz crystals is. A physical change differs from a chemical change in that new substances are formed.

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