Acid - Simple English Wikipedia, the free encyclopedia
WebAn acid is a substance that can donate a hydrogen ion (H +) (generally speaking, this will be a proton) to another substance. Acids have a pH less than 7.0. A chemical can donate a proton if the hydrogen atom is attached to an electronegative atom like …
ACID - Wikipedia
WebIn computer science, ACID ( atomicity, consistency, isolation, durability) is a set of properties of database transactions intended to guarantee data validity despite errors, power failures, and other mishaps. [1] In the context of databases, a sequence of database operations that satisfies the ACID properties (which can be perceived as a ...
Acid | Definition, Examples, Types, Uses, & Facts | Britannica
WebAcid, any substance that in water solution tastes sour, changes the color of certain indicators (e.g., reddens blue litmus paper), reacts with some metals (e.g., iron) to liberate hydrogen, reacts with bases to form salts, and promotes …
Hydrochloric acid - Wikipedia
WebHydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungent smell. It is classified as a strong acid. It is a component of the gastric acid in the digestive systems of most animal species, including humans.
Acid strength - Wikipedia
WebAcid strength is the tendency of an acid, symbolised by the chemical formula, to dissociate into a proton, +, and an anion, . The dissociation of a strong acid in solution is effectively complete, except in its most concentrated solutions.
Acetic acid - Wikipedia
WebAcetic acid / ə ˈ s iː t ɪ k /, systematically named ethanoic acid / ˌ ɛ θ ə ˈ n oʊ ɪ k /, is an acidic, colourless liquid and organic compound with the chemical formula CH 3 COOH (also written as CH 3 CO 2 H, C 2 H 4 O 2, or HC 2 H 3 O 2). Vinegar is at least 4% acetic acid by volume, making acetic acid the main component of vinegar ...
14.2: Acids: Properties and Examples - Chemistry LibreTexts
WebAcids react with bases to produce a salt compound and water. When equal moles of an acid and a base are combined, the acid is neutralized by the base. The products of this reaction are an ionic compound, which is labeled as a salt, and water.
Organic acid - Wikipedia
WebAn organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids , whose acidity is associated with their carboxyl group –COOH. Sulfonic acids , containing the group –SO 2 OH, are relatively stronger acids.
Sulfuric acid - Simple English Wikipedia, the free encyclopedia
WebSulfuric acid chemical structure Concentrated sulfuric acid burning tissue paper. Sulfuric acid, also known as sulphuric acid, is a strong acid. It is a chemical compound. Its chemical formula is H 2 SO 4. It was known as "Oil of Vitriol" in ancient times.
Strong acid - Simple English Wikipedia, the free encyclopedia
WebIn chemistry, a strong acid is an acid which ionizes (splits) completely in a solution of water. It always loses a proton (A H +) when put in water. A weak acid does not always lose a proton, though; It can lose its proton, but not all the time. They also have a very low pH, usually between 1 and 3.
pH - Simple English Wikipedia, the free encyclopedia
WebSubstances that aren't acidic or alkaline (that is, neutral solutions) usually have a pH of 7. Acids have a pH that is less than 7. Alkalis have a pH that is greater than 7. pH is a measure of the concentration of protons (H +) in a solution.
Acid: Definition and Examples in Chemistry - ThoughtCo
WebJan 13, 2020 · By. Anne Marie Helmenstine, Ph.D. Updated on January 13, 2020. An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons. Most acids contain a hydrogen atom bonded that can release (dissociate) to …
Sulfuric acid - Wikipedia
WebSulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula H 2 SO 4. It is a colorless, odorless, and viscous liquid that is miscible with water.
Citric acid - Wikipedia
WebIt occurs naturally in citrus fruits. In biochemistry, it is an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms. [10] More than two million tons of citric acid are manufactured every year. It is used widely as an acidifier, as a flavoring, and a chelating agent.
Acetic acid - Simple English Wikipedia, the free encyclopedia
WebAcetic acid, or ethanoic acid, (CH 3 COOH) is a carboxylic acid. It is the main compound of vinegar, other than water. It tastes and smells sour; it has no color. Its melting point is 16.5 °C(61.6 °F) and its boiling point is 118.1 °C(244.5 °F). It has a pH of 2.4. Acetic acid is commonly used as a food additive. It has the E numbers E 260 ...
Overview of Acids and Bases - Chemistry LibreTexts
WebJan 30, 2023 · In chemistry, acids and bases have been defined differently by three sets of theories. One is the Arrhenius definition, which revolves around the idea that acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (H +) ions while bases produce hydroxide (OH -) ions in solution.
Acetic acid | Definition, Formula, Uses, & Facts | Britannica
WebMay 10, 2024 · acetic acid (CH3COOH), the most important of the carboxylic acids. A dilute (approximately 5 percent by volume) solution of acetic acid produced by fermentation and oxidation of natural carbohydrates is called vinegar; a salt, …
Lactic acid - Wikipedia
WebLactic acid is an alpha-hydroxy acid (AHA) due to the presence of a hydroxyl group adjacent to the carboxyl group. It is used as a synthetic intermediate in many organic synthesis industries and in various biochemical industries. The conjugate base of lactic acid is called lactate (or the lactate anion).
Acids - Chemical Structures of Acids - ThoughtCo
WebNov 5, 2019 · Acids - Chemical Structures. An acid donates a hydrogen ion or proton in aqueous solution. This is an image gallery of the chemical structures of acids. These include the strong acids, such as hydrochloric and nitric acid, as well as important weak acids. Amino acids are also listed.
Acid Definition & Meaning - Merriam-Webster
WebThe 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 litmus, and have a pH less than 7, that are hydrogen-containing molecules or ions able to give up a proton to a base, or that are substances able to accept ...
10 Common Acids and Chemical Structures - ThoughtCo
WebSep 24, 2019 · Common strong acids include hydrochloric acid, sulfuric acid, phosphoric acid, and nitric acid. Common weak acids include acetic acid, boric acid, hydrofluoric acid, oxalic acid, citric acid, and carbonic acid. Here is a list of ten common acids with their chemical structures.
acid - Wiktionary, the free dictionary
Web5 days ago · Adjective [ edit] acid ( comparative acider, superlative acidest) Sour, sharp, or biting to the taste; tart; having the taste of vinegar . acid fruits or liquors. ( figuratively) Sour- tempered . Of or pertaining to an acid; acidic . ( music) Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid ...
Amino acid | Definition, Structure, & Facts | Britannica
WebMay 26, 2024 · An amino acid is an organic molecule that is made up of a basic amino group (−NH 2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid. The term amino acid is short for α-amino [alpha-amino] carboxylic acid .
Acid malic – Wikipedia tiếng Việt
WebAcid malic ( oxaloacetate acid) có công thức phân tử C 4 H 6 O 5 . Công thức cấu tạo: HOOC-CH 2 -CH (OH)-COOH. Acid malic gọi theo danh pháp IUPAC là acid 2-hidroxybutandioic. Các muối và ester của acid malic được gọi là các malat .
プベルル酸 - Wikipedia
Webプベルル酸 （プベルルさん、 英: Puberulic acid ）または プベルリン酸 （プベルリンさん） は、 分子式 C. 8 H. 6 O. 6 で表される七員環 有機化合物 （ トロポロン 類、トロポノイド）である [3] 。. アオカビ 属により産生され、 グラム陽性菌 に対する殺菌作用 ...
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