Question

question 4 of 10
which kind of electrical charge is found on the oxygen atom of a polar water molecule?
a. a negative charge that exists because of a covalent bond with hydrogen
b. a positive charge that exists because of a covalent bond with hydrogen
c. a negative charge that exists because of an ionic bond with hydrogen
d. a positive charge that exists because of an ionic bond with hydrogen

Explanation:

Oxygen is more electronegative than hydrogen in a water molecule. In the covalent - bonded water ($H_2O$), oxygen attracts the shared electrons more strongly, resulting in a partial negative charge on the oxygen atom.

Answer:

A. A negative charge that exists because of a covalent bond with hydrogen