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Mathematics, 17.04.2020 03:34 gharrell03

What is an example of a physical change?
having less ash than the paper that was burned to form it
ice forming and then melting back into water
rust having a different identity than the iron it forms on
the irreversible reaction of vinegar and baking soda

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What is an example of a physical change?
having less ash than the paper that was burned to for...
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