Hydrogen-Oxygen-Water: Fire Extinguisher?

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Hydrogen is a combustible substance, while oxygen supports combustion. Water, a product of hydrogen combustion, extinguishes fire despite being a combustion product. This is because water is not a residual ash like unburned materials; rather, it is the result of combustion. The discussion emphasizes that being a combustion product does not imply immunity to combustion, as other compounds can still burn. Water's role in extinguishing fire is attributed to its chemical properties, distinguishing it from unburned residues.
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hydrogen is a combustible substance and oxygen is a supporter of combustion. but water extinguishes fire. how is that?:confused:
 
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Water is the waste product of the combustion you are describing. It has already been burned.
 
Uh, yeah. That pretty much covers it.

Water is the "ash" left over from burning hydrogen.
 
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varsha said:
hydrogen is a combustible substance and oxygen is a supporter of combustion. but water extinguishes fire. how is that?:confused:
Varsha: Please look up the definition of a "compound" in your chemistry text.

To others: Something being a combustion product does not mean the thing is immune to further combustion (eg: CO, aldehydes), and that's besides the point here. Furthermore, water is most certainly nothing like an ash. An ash is the uncombusted residue; water is a combustion product.
 
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