One molecule of water consists of: a. one atom of oxygen covalently bonded to two atoms of hydrogen via a shared pair of electrons. b. one atom of oxygen bound to two atoms of hydrogen via ionic bonds. c. one atom of oxygen bound to two atoms of hydrogen via van der Waals bonds. d. one atom of oxygen bound to two atoms of hydrogen via hydrogen bonds. e. one atom of oxygen covalently bonded to two atoms of hydrogen via one shared electron.