why does NaCl disassociate in water while ammonia does not A. ammonia has a lot of nitrogen which has a strong electronegativity that holds the electrons together, and NaCl lacks the nitrogen B. ammonia does not have a strong electronegativity, and hence cannot attract water molecules, while Na and Cl have strong electronegativity, so will attract the partial electrical changes within the water molecules. C. ammonia is a polar molecule and will attract water to different charged regions of the molecule, while NaCl is a compound made up of ions, which will be pulled apart by the water molecules. D. ammonia is held together by nonpolar covalent bonds, while NaCl is held together, by polar covalent bonds.