Question

part a
study the picture of liquid water at the molecular level. describe the connections between the oxygen and hydrogen atoms.

Explanation:

In water ($H_2O$), oxygen and hydrogen atoms are connected by covalent bonds. Oxygen has a higher electronegativity, leading to a polar - covalent bond. Also, water molecules can form hydrogen bonds between the oxygen of one molecule and the hydrogen of another.

Answer:

Oxygen and hydrogen atoms in water are connected by polar - covalent bonds within a molecule, and hydrogen bonds form between different water molecules.