Problem: A match is lit and held under a cold piece of metal. The following observations are made:The match burns.The metal gets warmer.Water condenses on the metal.Soot (carbon) is deposited on the metal.Which of these occurrences are due to physical changes, and which are due to chemical changes?

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Physical change - no change in chemical composition

Chemical change - change in chemical composition


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Problem Details

A match is lit and held under a cold piece of metal. The following observations are made:

  1. The match burns.
  2. The metal gets warmer.
  3. Water condenses on the metal.
  4. Soot (carbon) is deposited on the metal.

Which of these occurrences are due to physical changes, and which are due to chemical changes?

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