For each of the Lewis acid–base reactions in Problem 16.139, draw electron-dot structures for the reactants and products, and use the curved arrow notation to represent the donation of a lone pair of electrons from the Lewis base to the Lewis acid.

Lewis acids are substances that can accept an electron pair, while Lewis bases are those that can donate an electron pair. This definition expands the concept of acids and bases beyond protons (H+) to include a broader range of chemical interactions. Understanding these definitions is crucial for analyzing reactions where electron pair transfer occurs.

Electron-dot structures, or Lewis structures, visually represent the valence electrons of atoms within a molecule. They show how atoms are bonded and the arrangement of lone pairs. Drawing these structures helps in predicting the behavior of molecules in reactions, particularly in Lewis acid-base interactions where electron donation is key.

Curved arrow notation is a method used in organic chemistry to illustrate the movement of electrons during chemical reactions. The tail of the arrow indicates the source of the electrons (usually a lone pair from a Lewis base), while the head points to the atom that will receive the electrons (the Lewis acid). This notation is essential for understanding the mechanism of Lewis acid-base reactions.