The bond dipole moment uses the idea of electric dipole moment to measure the polarity of a chemical bond within a molecule.It occurs whenever there is a separation of positive and negative charges. The bond dipole μ is given by: =. The bond dipole is modeled as δ + — δ – with a distance d between the partial charges δ + and δ –.It is a vector, parallel to the bond axis, pointing ...

A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be simple substances, chemical compounds, or alloys. ...