Those at increased risk include: 1  People with diabetes. 2  People with high blood pressure. 3  People with a family history of kidney failure. 4  People who are 65 years or older. 5  Certain ethnic groups including African Americans, Hispanics, Asians, American Indians.
The dipole moment of a molecule can be predicted by looking at the molecule's structure and the location of the dipoles within the molecule. When a molecule has no dipole moment, it will be nonpolar. A molecule with a dipole moment will be polar.
However, calculations on linear HCN dimers, trirners and pentamers [9, 10] agree in obtaining an average dipole moment per molecule larger than that of the monomer. We have also extended calculations [11] on zig-zag HF polymers, and again find a sub~ - stantial increase in the dipole moment per molecule.