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Chemistry
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mya15:
When a substance undergoes a physical change, A. its mass always decreases. B. its color always changes. C. its composition always changes. D. its composition remains the same.
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Salmon:
To understand this question you need to know What is a physical change?
Salmon:
Can you explain to me what a physical change is in your own words?
mya15:
nvm i got it right
Salmon:
Good job!
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