dangerousdave3 dangerousdave3
  • 18-10-2016
  • Chemistry
contestada

what is chalk made of

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maddogblb
maddogblb maddogblb
  • 18-10-2016
I think it might be part clay but not sure
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Webcowgirl
Webcowgirl Webcowgirl
  • 18-10-2016
 I think Sedimentary rock     hope that helps
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