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- DictionaryAc·id/ˈasəd/
noun
- 1. a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind. "traces of acid"
- 2. a molecule or other entity that can donate a proton or accept an electron pair in reactions.
adjective
- 1. containing acid or having the properties of an acid; having a pH of less than 7. "poor, acid soils"
- 2. sharp-tasting or sour: "acid fruit"
Learn the different meanings and uses of the word acid as a noun and an adjective. Find synonyms, examples, etymology, and related phrases of acid.
Acid is a substance that tastes sour, changes the color of indicators, reacts with metals and bases, and promotes acid catalysis. Learn about the properties, examples, and types of acids, such as mineral, organic, and sulfonic acids, from Britannica.
- The Editors of Encyclopaedia Britannica
- What are the examples of mineral acids?Sulfuric acids, nitric acids, hydrochloric acids, and phosphoric acids are examples of mineral acids.
- What are the examples of nonaqueous acids?Examples of nonaqueous acids are sulfur trioxide, aluminum chloride, and boron trifluoride.
- What are the examples of organic compounds that are acids?Examples of organic compounds that are acids include compounds in the carboxylic acid, sulfonic acid, and phenol groups.
- What is the difference between an acid and a base?Acids are chemical compounds that show, in water solution, a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegeta...
ACID is a noun that means a compound having a sour taste and capable of neutralizing alkalis or reddening blue litmus paper. It can also mean a sharp, biting, or ill-natured remark or piece of writing. See synonyms, origin, and usage examples of ACID on Dictionary.com.
- Arrhenius, Brønsted-Lowry, and Lewis Acids
- Acid Examples
- Strong and Weak Acids
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There are different ways of defining acids. A person referring to "an acid" is usually referring to an Arrhenius or Brønsted-Lowry acid. A Lewis acid is typically called a "Lewis acid." The reason for the differing definitions is that these different acids don't include the same set of molecules: 1. Arrhenius Acid: By this definition, an acid is a ...
These are examples of types of acids and specific acids: 1. Arrhenius acid 2. Monoprotic acid 3. Lewis acid 4. Hydrochloric acid 5. Sulfuric acid 6. Hydrofluoric acid 7. Acetic acid 8. Stomach acid (which contains hydrochloric acid) 9. Vinegar (which contains acetic acid) 10. Citric acid (found in citrus fruits)
Acids may be identified as either strong or weak based on how completely they dissociate into their ions in water. A strong acid, such as hydrochloric acid, completely dissociates into its ions in water. A weak acid only partly dissociates into its ions, so the solution contains water, ions, and the acid (e.g., acetic acid).
Learn the definition of acid as a chemical species that donates protons or hydrogen ions and/or accepts electrons, and the different ways of defining acids based on Arrhenius, Brønsted-Lowry, and Lewis models. See examples of types of acids and specific acids, such as hydrochloric acid, sulfuric acid, and citric acid.
- Anne Marie Helmenstine, Ph.D.
Feb 14, 2023 · Learn what an acid is in chemistry, based on different acid-base theories. Find out the properties, types, and examples of acids, such as hydrochloric acid, sulfuric acid, and acetic acid.
Learn the definition of acid as a noun and an adjective in English, with examples of usage and pronunciation. Find out the meanings of related words and phrases, such as acid taste, acid soil, and acid LSD. See translations of acid in different languages.
Nov 13, 2022 · Definition of an acid. An acid is a substance that yields an excess of hydrogen ions when dissolved in water. There are three important points to understand about hydrogen in acids:
