Science Homework Help

Science Homework Help. you heat two substances a and b both susbstances change color when cooled

substances a does not . what most likely happended.

a chemical change occured in both substances 

a physical change occured in substance a and a chemical change occured in substance B 

a physical change occured in both substances 

a chemical occured in substace a and a physical change occured in substance b 

Science Homework Help

 
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