Water (moving) in 3-D

Water molecules - animation of diffusion

This shows 32 molecules of water.

These have different numbers of hydrogen bonds between them: 3 or 4 in the centre of the group, and fewer around the edge.
Show ... hide H bonds

The view can be animated to show water molecules in 3-D motion, as they are in liquid water. As the molecules move, the hydrogen bonds sometimes break and re-form.
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... Stop animation



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Other related topics on this site

(also accessible from the drop-down menu above)
The Biological Significance of Water

Interactive 3-D molecular graphic models on this site

(also accessible from the drop-down menu above)
The Water molecule
Hydrogen bonds in water
The structure of ice

Web references

As I was starting to animate the water in Jsmol, I found this:
Liquid water ab initio molecular dynamics - Youtube video
Good but not quite perfect - note odd sticks without balls (!) and loose oxygens!