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Two Hydrogen atoms covalently bonded to one Oxygen atom. One of the more common compounds on the surface of the earth.
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General Doubt. My doubt about combustion
Oxygen - but not just any oxygen, it has to be in a form where it can
readily combine with the fuel - water won't work, as the oxygen it
contains is too hard to separate from its hydrogen atoms, whereas … So the reason why boiling water and paper don't burn is a lack of easily-usable oxygen atoms and insufficient heat - you're missing two points of the triangle. …