Use Lewis structures to show how the following reaction can...

Use Lewis structures to show how the following reaction can be viewed as the displacement of one Lewis base by another Lewis base from a Lewis acid. Identify the two Lewis bases and the Lewis acid. $$\mathrm{NH}_{2}^{-}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{NH}_{3}+\mathrm{OH}^{-}$$

Use Lewis structures to show how the following reaction can be viewed as the displacement of one Lewis base by another Lewis base from a Lewis acid. Identify the two Lewis bases and the Lewis acid.
$$\mathrm{NH}_{2}^{-}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{NH}_{3}+\mathrm{OH}^{-}$$

Key Concepts

Displacement Reactions in Lewis Acid-Base Complexes

This concept involves a reaction mechanism where one Lewis base replaces another that is already coordinated to a Lewis acid. The process demonstrates the relative strengths of the bases involved; a stronger base can displace a weaker one from the coordination sphere of the acid. In the given reaction, the incoming base donates an electron pair and displaces the previously attached base, highlighting the concept of ligand exchange in acid-base interactions.

Lewis Acid-Base Theory

Lewis acid-base theory characterizes acids as electron pair acceptors and bases as electron pair donors. This framework extends beyond proton transfer and allows for the analysis of chemical reactions based on the movement of electron pairs. It provides a broader understanding of chemical reactivity and complex formation, including cases where seemingly similar species, such as water, can act as an acid by accepting electrons in a bonding scenario.

Lewis Structures

Lewis structures are diagrams that use dots to represent valence electrons and lines to illustrate bonding between atoms. They are essential tools for visualizing the electron pair donation and acceptance processes in chemical reactions. By depicting the flow of electrons, these structures help in understanding how bonds are formed or broken during a reaction, such as in the displacement of one base by another from a central acidic molecule.

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