Lattice Structure of Water (Solid Crystal)?

Question

What is the lattice structure of water and what it looks like?

What are the interactions that hold the structure in place?

Answer 1

Solid water (ice) has exactly the same crystal structure as diamond. Imagine each C atom in diamond is an O atom, and there is an H atom hydrogen-bonded exactly half way between each and every O atom. That is the structure of ice.

Answer 2

Normally, when a liquid freezes into a solid, the atoms move closer together, making the object denser and smaller. when water freezes, however, the atoms move farther apart, making it less dense, and larger. this is why water will usually break a sealed container if it freezes inside it.