Lewis Acids and Bases! Definition #chemistry #chemical_reactions

**Lewis Acid and Base – Brief Description:**

A **Lewis acid** is a substance that **accepts an electron pair**, while a **Lewis base** is a substance that **donates an electron pair**. This concept, introduced by Gilbert N. Lewis, broadens the definition of acids and bases beyond protons.

* **Lewis acid**: Electron-pair **acceptor** (e.g., AlCl₃, BF₃, H⁺)
* **Lewis base**: Electron-pair **donor** (e.g., NH₃, OH⁻, H₂O)

**Example**:
In the reaction between **BF₃** and **NH₃**, BF₃ (acid) accepts a lone pair from NH₃ (base), forming a coordinate covalent bond.

This theory helps explain reactions in both organic and inorganic chemistry that don't involve H⁺ ions.

Видео Lewis Acids and Bases! Definition #chemistry #chemical_reactions канала Science Catalyzer