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What must occur for a change to be a chemical reaction? a. There must be a change in chemical properties. b. There must be a change in physical properties. c. The change must involve a change in mass. d. The change must involve a change in volume.
There must be a change in chemical properties for a chemical reaction to occur.
Expert answered|paral|Points 8355|
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Asked 3/31/2014 10:51:10 AM
Updated 4/1/2014 3:06:04 AM
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Confirmed by jeifunk [4/1/2014 3:06:04 AM]
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