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    • Burning coal in hot campfire flame.
    Rights: 123RF Limited Published 3 November 2009 Size: 180 KB Referencing Hub media

    Charcoal is what is left after the hydrocarbons have been burnt off in wood. It glows because it is very hot and still has contact with the air (oxygen).

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      What is smoke?

      What is smoke and why do some fires seem to have more smoke than others? Smoke is a collection of tiny solid, liquid and gas particles. Although smoke can contain hundreds of different chemicals ...

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