A '''polar covalent molecule''' is a [[molecule]] which is joined by [[polar covalent bond]]s. These bonds can not be of equal strength and pulling in opposite directions, because a polar covalent molecule must have an overall electrical charge. | A '''polar covalent molecule''' is a [[molecule]] which is joined by [[polar covalent bond]]s. These bonds can not be of equal strength and pulling in opposite directions, because a polar covalent molecule must have an overall electrical charge. |