Bases and Acids

[JasonNovik3A]

What's the difference between Lewis Acids and Bases and how do we identify them?

[Sabrina Fardeheb 2B]

A Lewis Acid is a molecule that accepts an electron pair.
A Lewis Base is a molecule that donates an electron pair.

Acids and bases can be considered in certain reactions to see how they form coordinate covalent bonds.

[Brigitte Phung 1F]

I hope these examples of Lewis Acids and Bases also help!
Examples of Lewis Bases: NH3, F-, and OH-
Examples of Lewis Acids: BF3 and H+.

[Guangyu Li 2J]

In general, Lewis acid is the "electron accepter" and Lewis base is the "electron donor".

Commonly, most of cations and metal ions are Lewis acids (accepting electrons)
most of nonmetal ions, neutral molecule with unpaired electrons (e.g. NH3), and some molecules with C=C bonds are Lewis bases(donating electrons)