Water can behave both as an acid and as a base because Select one:
a. water is able to supply protons and accept protons
b. water can be reduced and oxidized
c. water has both hydronium and hydroxide ions in equal concentrations
d. water has two unshared pairs of electrons

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.