Acid | Definition, Examples, Types, Uses, & Facts | Britannica
Oct 18, 2025 · What is an acid, as defined in chemistry? An acid is any substance that in water solution tastes sour, changes blue litmus paper to red, reacts with some metals to liberate …
Acid - Simple English Wikipedia, the free encyclopedia
The definition of an acid has changed as people discovered more about chemistry. Acids were originally grouped together by their properties: they taste sour, change the color of litmus …
ACID Definition & Meaning - Merriam-Webster
The meaning of ACID is a sour substance; specifically : any of various typically water-soluble and sour compounds that in solution are capable of reacting with a base to form a salt, redden …
6.1: What is an Acid and a Base? - Chemistry LibreTexts
An acid is a substance that forms hydrogen ions H + when dissolved in water, and A base is a substance that forms hydroxide ions OH - when dissolved in water. For example, hydrochloric …
ACID Definition & Meaning | Dictionary.com
An acid is the opposite of a base and has a pH of 0 to 7. A given amount of an acid added to the same amount of a base neutralizes the base, producing water and a salt.
Definitions of Acids and Bases, and the Role of Water
In an operational sense, an acid is any substance that increases the concentration of the H + ion when it dissolves in water. A base is any substance that increases the concentration of the OH …
What Is an Acid in Chemistry? Definition and Examples
Feb 14, 2023 · In chemistry, an acid is a chemical species that donates hydrogen ions or protons or accepts an electron pair. Acids react with bases and some metals via a neutralization …