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.
A molecule like CH4, (methane), will be nonpolar. All the ligands attached to carbon have the same electronegativity, so there is no difference in dipole around carbon.Another determiner regarding polarity is the presence of lone pairs of electrons. Ammonia (NH3) has ligands that all have the same electronegativity. molecule like CH4, (methane), will be nonpolar. All the ligands attached to carbon have the same electronegativity, so there is no difference in dipole around carbon.