Search results
- Dictionaryacid/ˈasɪd/
noun
- 1. a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind. "trees were exposed to mixtures of heavy metals, acids, and overdoses of nutrients"
- 2. a molecule or other species which 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. "acid soils"
- 2. sharp-tasting or sour: "acid fruit" Similar Opposite
Powered by Oxford Dictionaries
An acid is a substance that tastes sour, changes the colour of indicators, reacts with metals and bases, and promotes chemical reactions. Learn about the different types of acids, such as mineral, organic, and nonaqueous, and how they are classified by the Brønsted–Lowry and Lewis theories.
- Acid-Base Reaction
acid–base reaction, a type of chemical process typified by...
- Sulfonic Acid
Sulfonic acid, any of a class of organic acids containing...
- Arrhenius Theory
Arrhenius theory, theory, introduced in 1887 by the Swedish...
- Lewis Theory
Lewis theory, generalization concerning acids and bases...
- Oxyacid
Oxyacid, any oxygen-containing acid. Most covalent...
- Bronsted-Lowry Theory
In the equation the ammonium ion (NH + 4 ) is the acid...
- Carboxylic Acid
Ask the Chatbot a Question Ask the Chatbot a Question...
- Phenol
Many phenolic compounds were discovered and used long before...
- Acid-Base Reaction
Learn what acids and bases are, how they are defined by different theories, and how they react with each other. Find out the properties, uses, and pH values of acids and bases, and how to test them with litmus paper.
- 5 min
- To decide whether a substance is an acid or base, count the hydrogens on each substance before and after the reaction. If the number has decreased...
- An acid is a contributing product containing hydrogen ions. If the solution contains more hydronium ions (H3O+) than hydroxyl ions (OH-) , then the...
- The sodium hydroxide, calcium carbonate and potassium oxide are examples of bases. A base is a material that interacts with hydrogen ions and can n...
- Acids are ionic compounds that, when dissolved in water, produce positive hydrogen ions ( H+) When dissolved in water, acids are sour in taste, con...
- Two types of corrosive compounds are the acids and bases. Any material with a pH value between 0 and 7 is known to be acidic while a pH value betwe...
- Acids play significant roles within the human body. The presence of hydrochloric acid in the stomach helps digestion by breaking down large and com...
- The sodium hydroxide, calcium carbonate and potassium oxide are examples of bases. A base is a substance that reacts with hydrogen ions and can neu...
- To decide whether a substance is an acid or base, count the hydrogens on each substance before and after the reaction. If the number has decreased...
- Base taste bitter has a soapy texture and releases hydroxide ions when dissolved in water. They are good conductors of electricity and have a pH va...
Learn the definition of acid as a noun and an adjective, with synonyms, examples, and word history. Find out how acid relates to chemistry, medicine, and slang.
Learn the meaning of acid as a noun and an adjective in chemistry, biology and slang. Find out how to use acid in sentences and collocations with other words.
- Acid Definition and Examples
- Amphoteric Species
- Strong and Weak Acids
- Monoprotic vs Polyprotic
- Superacids
- Properties of Acids
- References
- GeneratedCaptionsTabForHeroSec
There are three ways of defining an acid, based on the three main acid-basetheories. Some chemicals are acids under one definition, but not another. 1. Arrhenius acid: An Arrhenius acid increases the hydrogen ion (H+) concentration of an aqueous solution. Since hydrogen ions attach to water molecules, what this really means is an Arrhenius acid inc...
An amphoteric compoundacts as either an acid or a base, depending on the situation. Examples include water, amino acids, and metal oxides. For example, water donates a proton when it reacts with a base, but accepts a proton when it reacts with water.
The two broad categories of acids are strong acids and weak acids. 1. Strong acids completely dissociate into their ions in water (or other solvent, for Brønsted-Lowry acids). Examples include hydrochloric acid (HCl) and nitric acid (HNO3). There are only seven common strong acids. 2. Weak acids incompletely dissociate into their ions in a solvent,...
A monoprotic or monobasic acidonly donates one proton per molecule. An example is hydrochloric acid (HCl). HA (aq) + H2O (l) ⇌ H3O+ (aq) + A−(aq) A polyprotic or polybasic acid can donate more than one proton per acid molecule. There are diprotic (dibasic) acid and triprotic (tribasic acids). For example, sulfuric acid (H2SO4) is a diprotic acid th...
A superacid is any acid that is stronger than sulfuric acid. The strongest acid is fluoroantimonic acid (HSbF6). It donates protons about a billiontimes better than sulfuric acid.
Acids display several characteristic properties: 1. Most taste sour. (Don’t test this.) 2. Most are corrosive. 3. They have pH values less than 7. 4. Acids turn litmus paperred. 5. In water, Arrhenius acids are electrolytes. In other words, they conduct electricity in aqueous solution. 6. Arrhenius acids react with bases to form salt and water. 7. ...
Finston, H.L.; Rychtman, A.C. (1983). A New View of Current Acid-Base Theories. New York: John Wiley & Sons. doi:10.1002/ciuz.19830170211Hall, Norris F. (March 1940). “Systems of Acids and Bases”. Journal of Chemical Education. 17 (3): 124–128. doi:10.1021/ed017p124IUPAC (1997). “Acid.” Compendium of Chemical Terminology (2nd ed.). Oxford: Blackwell Scientific Publications. doi:10.1351/goldbookJensen, W.B. (1980). The Lewis Acid-Base Concepts: An Overview. New York: Wiley. ISBN 0-471-03902-0.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.
Jan 13, 2020 · Learn what an acid is in chemistry, how to identify different types of acids, and see examples of common acids. An acid is a substance that donates protons or hydrogen ions and/or accepts electrons in water.
Learn what acids and bases are, how to identify them by taste, color and indicators, and how to name them according to Arrhenius's definition. Find examples of common acids and their anions, and the rules for naming them.
