Question

question 18 water is a polar molecule because a. different parts of the molecule have slightly different charges b. it has no charge c. it contains two hydrogen atoms for each oxygen atoms d. it is highly charged

Explanation:

A polar molecule has a separation of electric charge leading to a dipole moment, with different parts having slightly different charges. In water ($H_2O$), oxygen is more electronegative than hydrogen, creating partial - negative and partial - positive charges within the molecule.

Answer:

A. different parts of the molecule have slightly different charges