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Grinding quartz crystals down to produce sand is an example of a a. change of state. c. chemical reaction. b. chemical change. d. physical change.
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Grinding quartz crystals down to produce sand is an example of a a. change of state. c. chemical reaction. b. chemical change. d. physical change.

User Trylks
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D. A physical change

The makeup of it is still the same it's just ground up
User Tom Chantler
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