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Which observation is a sign of a chemical change? A rotting potato gives off a bad smell. A melting block of ice leaves a large puddle. A cloud changes shape when blown by wind. A plaster statue breaks when it falls onto the floor.

Answer :

a. A rotting potato gives off a bad smell
Rosy67
Hello!!!!!

I studied and went over the question, and i believe the answer is simply... A)A rotting potato gives off a bad smell. 

Hope this could help!!!!

~Rosy

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