gustavolucio148 gustavolucio148

29-08-2018
Chemistry

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A teacher wants to perform a classroom demonstration that illustrates both chemical and physical changes. Which would be the best demonstration that she could use?

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javierandresdiaz javierandresdiaz

29-08-2018

when you crumble paper is still paper when you burn down paper you get ashes. that is want is call chemical and physical changes.

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