Question

During the winter months water on the surface of a pond will typically freeze and this ice acts as an insulator for the water but need that as a result aquatic life is able to survive during the cold winter. The reason that this water expands upon freezing is due to:

A. the hydrogen bonding that creates its hexagonal shape

B. Water molecules being soluble in any polar solvent

C. It really high heat of vaporization

D. Low molecular mass

Answer 1

When water freezes, the hydrogen bonding that creates its hexagonal shape causes the water molecules to expand out and take up more volume. As a result, its less dense than liquid water and it floats.

Answer 2

A:The hydrogen bonding that creates its hexagonal shape.