Melany855 Melany855
  • 09-06-2015
  • Chemistry
contestada

Which two substances can not be broken down by chemical change?
(1) C and CuO (3) CO2 and CuO
(2) C and Cu (4) CO2 and Cu

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Аноним Аноним
  • 09-06-2015
C and Cu cannot be broken down by chemical change.
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