is anion acid or base?
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A base is something that accepts a H+ so are normally anions. It is important to note that these acids and bases are almost always neutral before they are dissolved in water. In terms of the broader definition of Lewis acidity neutral compounds can absolutely be acids or bases.
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A salt consists of the positive ion (cation) of a base and the negative ion (anion) of an acid. The reaction between an acid and a base is called a neutralization reaction. The term salt is also used to refer specifically to common table salt, or sodium chloride.
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All acids under the Lowry-Bronsted definition, yes. Under the Lewis definition, metal ions can be acids, so obviously for them the answer is no. The most common bases are metal hydroxides, which are mostly ionic, like NaOH. Some weak bases (like ammonia) are covalent.
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Arrhenius defined an acid as a compound that increases the concentration of hydrogen ion (H+) in aqueous solution. ... Many bases are ionic compounds that have the hydroxide ion as their anion, which is released when the base dissolves in water.
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An acid is a substance which donates hydrogen ions into solution, while a base or alkali is one which takes up hydrogen ions.
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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 yield a cation and an anion in water.
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NH4I, ammonium iodide, is not an acid or base; it is only a salt. But it is an acidic salt. NH4I is a salt of hydroiodic acid (HI), a strong acid, and ammonia (NH3), a weak base. An aqueous solution of such a salt is acidic (pH < 7 ) due to hydrolysis of the cation.
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Acids are substances that can donate H+ ions to bases. Since a hydrogen atom is a proton and one electron, technically an H+ ion is just a proton. So an acid is a "proton donor", and a base is a "proton acceptor".
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A base is a substance that neutralises an acid. ... Alkali is a basic, ionic salt of an alkali metal or alkaline earth metal element. Alkalis are best known for being bases that dissolve in water. (Most common form is hydroxide.)
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Essentially a base is a chemical which will react with an acid to form a salt and water only. An alkali is a water-soluble base. These are all Group I metal hydroxides, plus calcium hydroxide (which is just soluble in water) plus ammonium hydroxide.
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For example, NH4Br is the salt of a weak base (NH3) and a strong acid (HBr), so the salt is acidic. Similarly, NaF is basic (it is the salt of a strong base, NaOH, and a weak acid, HF).
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Acids are substances that when dissolved in water release hydrogen ions, H+(aq). Bases are substances that react with and neutralise acids, producing water.
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Bases are compounds that break up into hydroxide (OH-) ions and another compound when placed in an aqueous solution.
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There are six common strong acids: HClO4, HI, HBr, HCl, H2SO4, and HNO3. The conjugate base of a strong acid is neutral. In contrast to strong acids, weak acids ionize only partially in aqueous solution.
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Any compound with a pH value between zero to seven is considered acidic, whereas a pH value between seven to fourteen is a base. An acid is called a proton donor, while a base is called a proton acceptor (Kolb, 1978).
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OH, or hydroxide, group. Metal hydroxides, such as LiOH, NaOH, KOH, and Ca(OH)2, are bases. Nonmetal hydroxides, such as hypochlorous acid (HOCl), are acids.
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Acids are molecular compounds that dissolve in water to produce hydrogen ions and an anion. Bases are ionic compounds consisting of hydroxide ions and a cation. The naming rules for acids are based on the suffix of the anion.