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This video started a good discussion over on my friends feed. So far no one has answered it and I dont want to give away the answer to anyone else (please CW your answers) but the question is this:
Why is it when you burn a piece of steel wool it gets heavier, but if you burn a log it gets lighter.
https://commons.wikimedia.org/wiki/File:Busch_Werke_v1_p_235.jpg
@freemo At standard temperature and pressure,
the oxides of iron remain solid, while the oxides of carbon are gaseous and dissolve into the atmosphere.
Rust binds atmospherical oxygen,
carbon oxides release carbon.
https://commons.wikimedia.org/wiki/File:Busch_Werke_v1_p_235.jpg
@tatzelbrumm
Yup thats the majority of the eeight. Only part you forgot is that water is also generated in the reaction and released as steam.
