[HydrogenBond]

In chemistry water is normally represented as a bent molecule with an almost tetrahedral shape with two hydrogen atoms and two non bonded electron pairs.


What they have found is the two non bonded electrons pairs sort of merge between where they thought the two non bonded electrons were, much closer to the oxygen atom.



When water forms ice then the tetrahedral sort of returns. But when water is hydrogen bonded to some proteins, the water is triangular. The bent shape allows the hydrogen to share the electrons on another water.

[koji8123]

Originally Posted by Moontanman

Evaporation is important but you have left out a big part of the puzzle. Heating water drives out all the dissolved gasses. Dissolved gasses act like antifreeze driving the freezing point down making it harder to freeze water that contains the gasses. Heated water not only cools fast it also freezes closer to the freezing point of pure water.

right that's why if you were to boil the water, evaporating most of the minerals in the water to get it closer to H20.

[alexander]

right that's why if you were to boil the water, evaporating most of the minerals in the water to get it closer to H20.

methinks it works the other way around, since mineral's melting and evaporation points are much, much higher then that of water, it is water that evaporates, and minerals remain (hence why they make distilled water by collecting and condensing the vapor)

simple experiment, really, take some water, and add salt to it, mix it till there is no more salt, now set the pot down on a burner, and boil the water out, what are you left with, in the pot?