Final answer:
The subject of the question is the dipole moment in chemistry, which refers to the vector quantity depicting the charge imbalance in a polar covalent bond, calculated using the formula M = Qr.
Step-by-step explanation:
The student's question refers to the concept of a dipole moment in chemistry, which is associated with polar covalent bonds. A polar covalent bond occurs when two atoms with different electronegativities share electrons unevenly, resulting in one end of the bond being slightly negative (delta-) and the other slightly positive (delta+).
The dipole moment is a vector quantity represented by an arrow with a positive end that points from the less electronegative atom to the more electronegative atom, indicating the direction of the electron density shift.
The formula M = Qr is used to calculate the dipole moment, where Q is the magnitude of the partial charges and r is the distance between the charges.
The dipole moment can influence the physical properties of a substance and its interactions with other molecules, such as in dipole-dipole interactions.
The subject of this question is Chemistry. The question is asking about bonds that have a certain characteristic, which can be illustrated using a dipole arrow pointing to the more negative atom.
This characteristic is known as a dipole moment, which is a measure of the separation of charge in a bond.
The dipole moment is represented by a vector, and the length of the arrow in the vector is proportional to the difference in electronegativity between the bonded atoms.