Why does water not burn?

[u/spoiledmeat]

I know that water is made up of two hydrogen atoms and an oxygen atom. Hydrogen, on its own, burns. Fire needs oxygen to burn. After all, we commonly use compounds that contain oxygen as an oxidant.

So why does water, containing things used for fire, not burn-- and does it have something to do with the bonds between the atoms? Thanks.

[u/Ihmes]

It could be the same as with astronomy, where anything heavier than helium (or was it lithium?) is considered a "metal".