8. 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. The change must involve a change in volume.

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asked Jan 26, 2021 106k views

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8. 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.
The change must involve a change in volume.
d. The change must involve a change in mass.
C.
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