garciakaylaaaa garciakaylaaaa

17-05-2021
Chemistry

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Which observation does not indicate that a chemical has occurred

A.formation of a precipitate
B.production of gas
C. evolution of heat and light
D. change in total mass of reactants and products

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eidmariam67 eidmariam67

17-05-2021

I think it is B
Hope my answer help you?!?!?!?!?

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