Which of the following describes an example of a material undergoing a chemical change to become another material with different characteristics?
a. iron turns to rust when it is exposed to oxygen.
b. when water boils, it turns into vapor, which is a gas.
c. oxygen can become liquid at a very low temperature
d. gold can be spread out very thin to cover a large area.
f. other :
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Which of the following describes an example of a material undergoing a chemical change to become ano...
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