Another intriguing search brought a reader to the sciencebase science news site, they were looking for the charcoal production process apparently, anyway, I don’t believe I have a ready-made article on the subject so instead would like to direct you to the Wikipedia entry on Charcoal.
Another reader was looking for the molecular structure of oxygen. In molecular form it is either O2 (the stuff we breathe, dioxygen) or O3 (ozone, the stuff it’s best not to breathe, but without which we’d all fry under the sun’s UV), but it oxygen also has radical and ionic forms. Again, Wikipedia is a good place to look for such information – Oxygen