Both carbon dioxide (CO) and water (H2O) are molecular compounds made up of three atoms. Which has a linear shape, and why?
OA. carbon dioxide only, because its central atom lacks any unbonded electron pairs
B. water only, because its central atom lacks any unbonded electron pairs
OC. neither molecule, because all three-atom molecules have bent shapes
OD. both molecules, because oxygen atoms always have unbonded electron pairs