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m_a_m_a [10]
2 years ago
12

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 cha

nge in physical properties. c. The change must involve a change in mass. d. The change must involve a change in volume. Please select the best answer from the choices provided A B C D Mark this and return
Chemistry
1 answer:
sergey [27]2 years ago
8 0

Answer:

A. There must be a change in chemical properties.

At least 2 or 3 atoms must change for it to be considered chemical. There must be some type of reactants that will change this. Otherwise, it's not a chemical reaction.

Hope this helps!

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