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.
Examples of nonpolar molecules include: 1  any of the noble gasses: He, Ne, Ar, Kr, Xe (These are atoms, not technically molecules.) 2  any of the homonuclear diatomic elements: H2, N2, O2, Cl2 (These are truly nonpolar molecules.) 3  carbon dioxide - CO2. 4  benzene - C6H6. 5  carbon tetrachloride - CCl4. 6  methane - CH4. 7  ethylene - C2H4.