H-O-H

Here's what the structural formula represents:

* H: Represents a hydrogen atom.

* O: Represents an oxygen atom.

* - : Represents a single covalent bond.

The oxygen atom is in the center, and the two hydrogen atoms are bonded to it, forming an angle of approximately 104.5 degrees. This bent shape is due to the two lone pairs of electrons on the oxygen atom, which repel the bonding pairs of electrons.