H2 WILL PUT OFF THE FIRE BUT IN SUN THERE IS LARGE AMOUNT OF H2 BUT SUN HAVEN'T PUT OFF YET
Answers
Answer:
Due to large moisture content
Answer:
Pure hydrogen will not burn in any chemical sense. Neither will mixtures of hydrogen and helium, the two elements that by weight make up more than 95 percent of all atoms. So gas planets such as Jupiter and Saturn cannot catch fire. But let a thousand such planets crash together and nuclear burning will ensue. This does not require oxygen.
Hydrogen will participate in many highly exothermic chemical reactions not involving oxygen: oxidation by fluorine or chlorine, reduction by active metals such as calcium, titanium, zirconium, hafnium, and the rare earth metals. In these reactions, hydrogen can look like a low-intensity variant of oxygen: the gas eats the metal, and hot ash, which is hydride rather than oxide, falls from it and to some extent may flow up from it, suspended in hot convecting hydrogen, as smoke.
If the hydride then is immersed in fluorine, metal and hydrogen abandon each other and both, with tremendous incandescence, combine with fluorine …
MgH 2 + 2 F 2 ⟶ MgF 2 + 2 HF
Even some oxides will burn in fluorine …
MgO + F 2 ⟶ MgF 2 + 12 O 2
Oxygen can form a fluoride OF 2 , where its oxidation state is neither -2, as in oxides, nor zero as in the element, but — uniquely — +2. But it is less stable than the uncombined elements, so I expect little of it to form in reactions like that
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