[Walt Fricke]

Mixed 76
You sound like you could answer this question: can high heat (as from a magnesium fire) cause water molecules (used to try to extinguish the fire) to split into hydrogen and oxygen gas? Which then burn while changing back to water?

A post on this discussion suggests this.

I only know (a little bit) about using electrolysis to do this, though on looking I see some chemical reactions can do it also. No mention of heat.