An acid/base definition that suggests an Brønsted–Lowry acid is any molecule that can donate a proton, and a Brønsted–Lowry base is any molecule that accepts the proton. Protons can be referred to as H+ or "hydrogen ions," so if you see those terms used in a textbook they all mean the same thing. When a Brønsted–Lowry acid gives its proton away, it is "deprotonated" and can now accept a proton; now that it has become an acceptor, it is referred to as a conjugate base. The same rule applies to Brønsted–Lowry bases: once they gain a proton (are protonated), they are known as conjugate acids.
student: i'm a little confused with this functional group. the reading says that the carboxylic acid (COOH) group loses its proton, H, making the formula COO−. now that there's a space on the oxygen that's vacant, could the group accept a proton in the empty space? wouldn't that make the group a base?
teacher: yeah, acids turn into things known as conjugate bases when they lose hydrogen ions. the space where a proton used to be is now available for bonding, and the group or molecule becomes a proton acceptor/Brønsted–Lowry base
that's how you use the Bronsted-Lowry/Brønsted–Lowry Acid-Base Theory
teacher: yeah, acids turn into things known as conjugate bases when they lose hydrogen ions. the space where a proton used to be is now available for bonding, and the group or molecule becomes a proton acceptor/Brønsted–Lowry base
that's how you use the Bronsted-Lowry/Brønsted–Lowry Acid-Base Theory
by ilikesciencemorethanyoudo July 6, 2025

The idea that one of your friends are so chopped that good looking girls run away in terror, but they can pull because they don’t have a scarecrow.
“John is so chopped I can’t pull in English class, but he already has a girlfriend. He’s an example of the scarecrow theory.”
by Twigsteroonie September 3, 2025

The theory that charging your friends $15 to hangout with you is moral and socially acceptable.
Often the theory is used when you irresponsibly buy something unreasonably expensive, then find an excuse to make your friends pay for it through indirectly using it.
Often the theory is used when you irresponsibly buy something unreasonably expensive, then find an excuse to make your friends pay for it through indirectly using it.
"Hey guys, I bought this new console, so every time you guys come hangout and use it, I'll need you to pay $15. It's only fair!"
"I know you're spending the night, so have you ever heard of the $15 theory? Yeah, I'll need you to pay me $15 to sleep on my new couch."
"I know you're spending the night, so have you ever heard of the $15 theory? Yeah, I'll need you to pay me $15 to sleep on my new couch."
by Dr15$ November 12, 2023

Probadance Theory: A conceptual framework that integrates principles from Bayesian epistemology and critical rationalism to create an adaptable and self-correcting hierarchy of event likelihoods. The term combines "probability" and "dance" to emphasize its dynamic and evolving nature in organizing, evaluating, and updating beliefs about the likelihood of various events.
Ever since I started applying the Probadance Theory to my decision-making, I've been able to assess situations with greater clarity and adaptability.
by Phieyl August 26, 2023

A far-fetched conspiracy theory that serves as an alternative explanation for an event someone finds unpleasant or inconvenient.
John: I was just accepted to Harvard University.
Joe: There's no way Harvard accepted you
John: Here's the acceptance letter.
Joe: You probably paid someone on the admissions board to make you a fake acceptance letter.
John: That's just a copespiracy theory.
Joe: There's no way Harvard accepted you
John: Here's the acceptance letter.
Joe: You probably paid someone on the admissions board to make you a fake acceptance letter.
John: That's just a copespiracy theory.
by You Dropped Something August 17, 2022

Another way of saying that a person has drip. Drip theory is a theory in which all principles of having drip are met; a person is wearing 3 or more items that make them drippy.
by DESIGNERWEAR October 11, 2022
