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ANSWERS: 4
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hmmm.. i was gonna say because it's H2O, not just O... but hydrogen itself is a very flammable gas :/ I guess mixing hydrogen and oxygen.. wait.. that wouldn't work either *shrugs* I don't have to take chemistry anymore because I switched majors :) LOOLLL
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Because one charcteristic of water is that it does not burn. It simply changes to steam if the temperature is high enough. Water also displaces air, lowers the temperature of things it touches, and cools the air around a fire ( which helps prevent the fire from spreading ),
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You can think of water as the "ash" of burning (a.k.a. oxidizing) hydrogen. So it's already burnt, and is capable of both blocking the uptake of oxygen by the combustants, and also cooling it down, slowing down the reaction rate.
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it spreads over the combusting material and cools it down thus lessening the chance of the fire starting up again.
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