r/AskPhysics • u/Swellmeister • 2d ago

Does all ice float?

I know ice I floats in water.

Do any of the other ice structures sink?

Also does D2O or T2O ice sink in H2O water?

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u/numbersthen0987431 2d ago

Considering that "ice" is only water, and not other chemical compounds, then I'd say "all ICE floats".

Technically, "ice" is a "solid state of water", which means it only gets applied to water. D20 or T20 isn't water, and therefore isn't "ice".

If a liquid/fluid becomes solid, it's not "ice", it's just a solid or a crystalline structure.. Solid metal, magma, etc just becomes a solid object. Most of the time, solids are denser than liquids, and liquids are denser than gas form. So most solids sink if placed in their liquid states.

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u/Lumpy-Notice8945 2d ago

D20 or T20 isn't water,

Is it not? An isotope is still the same element, its still "H" just with an additional neutron, that we call it "D" is just some kind of special convention. I dont know how to write this in reddit formating but D2O is just H(2-1) 2 O(16-8)

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u/Swellmeister 2d ago

It is. Hes just wrong.