alexxreyess03 alexxreyess03

29-01-2019
Chemistry

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Which of the following is a physical change?
A.burning a piece of wood
B.sawing a piece of wood in half
C.rust forming on an iron fence
D.a copper roof changing color from orange to green

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jeff0757 jeff0757

29-01-2019

C. Rust forming on an iron fence

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