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Is fire an atom?

fredreload
in Physics

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Water molecule are composed of atoms H2O, what about fire? What property is fire composed of? Photon? Electrons? Neutrons? Protons?

19 minutes ago, fredreload said:

Water molecule are composed of atoms H2O, what about fire? What property is fire composed of? Photon? Electrons? Neutrons? Protons?

Fire is plasma or ionised atoms.

"Fire" describes a process, not a substance.  Combustion — self-sustaining oxidation chain reactions.

As beecee has noted, it will will be comprised of atoms, which will be ionized in the reactions, and thus make a plasma. It will give off photons.

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