Answered

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In a science experiment, Javi concludes that a chemical reaction has occurred. What evidence would support this conclusion?
A
a substance melted

B
a substance's color and odor changed

C
a substance's mass and texture changed

D
new atoms were created

Sagot :

alvaroo790578

Answer:

B) a substance's color and odor changed        Explanation: A signal that a chemical change has occurred is when its odor (its smell) or its appearance has changed.

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