Its just hydrogen (highly flammable) and Oxygen (necessary) for combustion.
2006-07-13 16:58:01 · 8 answers · asked by mfougnie 3 in Science & Mathematics ➔ Chemistry
For the same reason that ash isn't; it's already been burnt. If you burn hydrogen in air, you get water.
2006-07-13 17:01:39 · answer #1 · answered by zee_prime 6 · 2⤊ 0⤋
combustion is a release of energy
water has nothing to convert into that's lower in energy. hydrogen does (water), petroleum does (CO2,H2O), so does natural gas (also CO2,H2O).
add energy to H2O and you get hydrogen gas and oxygen gas. then you can burn it and release it. it's a fun cycle, but it's why a hydrogen fuel cell isn't really energy efficient unless the energy it takes to generate the hydrogen is from efficient sources (like the geothermal energy that Iceland has just started using).
2006-07-13 18:40:52 · answer #2 · answered by twinsfan 2 · 0⤊ 0⤋
Ok say you burn hydrogen. Hydrogen burns, meaning it combines with oxygen. Water is formed. Why isn't car exhaust highly combustible....
2006-07-13 17:03:18 · answer #3 · answered by j 2 · 0⤊ 0⤋
Because the 'explode' holes are filled with hydrogen and the 'pointy' ends on the hydrogen are stuck into the holes of the oxygen.
2006-07-13 17:03:02 · answer #4 · answered by Anonymous · 0⤊ 0⤋
aHHH, water can be highly combustible, one must merely seperate the H2o into it's basic components and then put them backtogetheragain! Boom, that's how the Space shuttle flys.
2006-07-13 17:05:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
chemical change... iron +o2 yelds rust.. mercury +O2 gives mecuric oxide an orange powder..calcium a metal combines with other things is needed in our diet, but dont eat raw Ca... how about pure sodium... ingest it and good-bye.. but combine it with chlorine and wow NaCl... table salt
2006-07-13 17:09:26 · answer #6 · answered by wizard 4 · 0⤊ 0⤋
cuz wen there 2gether they make water
2006-07-13 17:01:17 · answer #7 · answered by Anonymous · 0⤊ 0⤋
water is nothing else but the ASHES of burned Hydrogen
U cannot burn ashes...:)
2006-07-13 21:06:15 · answer #8 · answered by UncleGeorge 4 · 0⤊ 0⤋