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we did a bunsen burner lab where we burned paper clips. We burned it for about 10 seconds then cooled it in water. I know this is a physical change but i need to come up with 3 chemical changes that occured. I already came up with the water vapor that occurs when it cools down and i need two more examples.

Thank you!

  • chemistry -

    Water vapor cooling is a physical change, not a chemical change.
    Does combusting gas to CO2 and H2O count as a chemical change although it isn't part of the paper clip.
    Did the paper clip change color upon heating? Isn't that a chemical change? What do you think the products were?

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