Question

what does it mean that the oxygen atom is electronegative?
oxygen has a strong pull on electrons
oxygen has a weak pull on electrons
hydrogen atoms pull electrons more than oxygen atoms do

Explanation:

Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond. Oxygen has a relatively high electronegativity value. A high electronegativity means the atom has a strong pull on electrons.

Answer:

Oxygen has a STRONG pull on electrons