Chemistry, 27.08.2019 16:30 skyrileycasting

What is the major difference between chemical and physical changes?
a. chemical changes always involve the release of some gas, which is not the case with physical changes.
b. physical changes always involve the release of some gas, which is not the case with chemical changes.
c. new substances are always produced in chemical changes, which is not the case with physical changes.
d. new substance are always produced in physical changes, which is not the case with chemical changes.

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What is the major difference between chemical and physical changes?
a. chemical changes alway...

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