Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Base_(chemistry)> ?p ?o }
- Base_(chemistry) abstract "In chemistry, bases are substances that, in aqueous solution, are slippery to the touch, taste bitter, change the color of indicators (e.g., turn red litmus paper blue), react with acids to form salts, promote certain chemical reactions (base catalysis), accept protons from any proton donor, and/or contain completely or partially displaceable OH− ions. Examples of bases are the hydroxides of the alkali and alkaline earth metals (NaOH, Ca(OH)2, etc.).These particular substances produce hydroxide ions (OH−) in aqueous solutions, and are thus classified as Arrhenius bases. For a substance to be classified as an Arrhenius base, it must produce hydroxide ions in an aqueous solution. In order to do so, Arrhenius believed the base must contain hydroxide in the formula. This makes the Arrhenius model limited, as it cannot explain the basic properties of aqueous solutions of ammonia (NH3) or its organic derivatives (amines). There are also bases that do not contain a hydroxide ion but nevertheless react with water, resulting in an increase in the concentration of the hydroxide ion. An example of this is the reaction between ammonia and water to produce ammonium and hydroxide. In this reaction ammonia is the base because it accepts a proton from the water molecule. Ammonia and other bases similar to it usually have the ability to form a bond with a proton due to the unshared pair of electrons that they possess. In the more general Brønsted–Lowry acid–base theory, a base is a substance that can accept hydrogen ions (H+)—otherwise known as protons. In the Lewis model, a base is an electron pair donor.In water, by altering the autoionization equilibrium, bases yield solutions in which the hydrogen ion activity is lower than it is in pure water, i.e., the water has a pH higher than 7.0 at standard conditions. A soluble base is called an alkali if it contains and releases OH− ions quantitatively. However, it is important to realize that basicity is not the same as alkalinity. Metal oxides, hydroxides, and especially alkoxides are basic, and counteranions of weak acids are weak bases.Bases can be thought of as the chemical opposite of acids. However, some strong acids are able to act as bases. Bases and acids are seen as opposites because the effect of an acid is to increase the hydronium (H3O+) concentration in water, whereas bases reduce this concentration. A reaction between an acid and base is called neutralization. In a neutralization reaction, an aqueous solution of a base reacts with an aqueous solution of an acid to produce a solution of water and salt in which the salt separates into its component ions. If the aqueous solution is saturated with a given salt solute, any additional such salt precipitates out of the solution.The notion of a base as a concept in chemistry was first introduced by the French chemist Guillaume François Rouelle in 1754. He noted that acids, which at that time were mostly volatile liquids (like acetic acid), turned into solid salts only when combined with specific substances. Rouelle considered that such a substance serves as a "base" for the salt, giving the salt a "concrete or solid form".".
- Base_(chemistry) wikiPageID "140459".
- Base_(chemistry) wikiPageLength "19624".
- Base_(chemistry) wikiPageOutDegree "104".
- Base_(chemistry) wikiPageRevisionID "681501785".
- Base_(chemistry) wikiPageWikiLink Acetic_acid.
- Base_(chemistry) wikiPageWikiLink Acid.
- Base_(chemistry) wikiPageWikiLink Acid-base_reaction.
- Base_(chemistry) wikiPageWikiLink Acid_catalysis.
- Base_(chemistry) wikiPageWikiLink Acid_strength.
- Base_(chemistry) wikiPageWikiLink Acid–base_reaction.
- Base_(chemistry) wikiPageWikiLink Activity_(chemistry).
- Base_(chemistry) wikiPageWikiLink Alchemy.
- Base_(chemistry) wikiPageWikiLink Alkali.
- Base_(chemistry) wikiPageWikiLink Alkali_metal.
- Base_(chemistry) wikiPageWikiLink Alkaline_earth_metal.
- Base_(chemistry) wikiPageWikiLink Alkalinity.
- Base_(chemistry) wikiPageWikiLink Alkoxide.
- Base_(chemistry) wikiPageWikiLink Amide.
- Base_(chemistry) wikiPageWikiLink Amine.
- Base_(chemistry) wikiPageWikiLink Ammonia.
- Base_(chemistry) wikiPageWikiLink Animism.
- Base_(chemistry) wikiPageWikiLink Aqueous_solution.
- Base_(chemistry) wikiPageWikiLink Arrhenius_base.
- Base_(chemistry) wikiPageWikiLink Barium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Barium_oxide.
- Base_(chemistry) wikiPageWikiLink Base-richness.
- Base_(chemistry) wikiPageWikiLink Base_catalysis.
- Base_(chemistry) wikiPageWikiLink Bitter.
- Base_(chemistry) wikiPageWikiLink Bitterness.
- Base_(chemistry) wikiPageWikiLink Brønsted–Lowry_acid–base_theory.
- Base_(chemistry) wikiPageWikiLink Caesium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Calcium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Calcium_oxide.
- Base_(chemistry) wikiPageWikiLink Carbon.
- Base_(chemistry) wikiPageWikiLink Catalysis.
- Base_(chemistry) wikiPageWikiLink Catalyst.
- Base_(chemistry) wikiPageWikiLink Category:Bases.
- Base_(chemistry) wikiPageWikiLink Category:Chemical_compounds.
- Base_(chemistry) wikiPageWikiLink Causticity.
- Base_(chemistry) wikiPageWikiLink Cesium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Chemical_equilibrium.
- Base_(chemistry) wikiPageWikiLink Chemical_reaction.
- Base_(chemistry) wikiPageWikiLink Chemistry.
- Base_(chemistry) wikiPageWikiLink Conjugate_acid.
- Base_(chemistry) wikiPageWikiLink Conjugate_base.
- Base_(chemistry) wikiPageWikiLink Corrosive_substance.
- Base_(chemistry) wikiPageWikiLink Deprotonate.
- Base_(chemistry) wikiPageWikiLink Deprotonation.
- Base_(chemistry) wikiPageWikiLink Double_bond.
- Base_(chemistry) wikiPageWikiLink Electron_pair.
- Base_(chemistry) wikiPageWikiLink Guillaume-François_Rouelle.
- Base_(chemistry) wikiPageWikiLink Guillaume_François_Rouelle.
- Base_(chemistry) wikiPageWikiLink Hydrogen_chloride.
- Base_(chemistry) wikiPageWikiLink Hydrogenation.
- Base_(chemistry) wikiPageWikiLink Hydron_(chemistry).
- Base_(chemistry) wikiPageWikiLink Hydronium.
- Base_(chemistry) wikiPageWikiLink Hydroxide.
- Base_(chemistry) wikiPageWikiLink Lewis_acids_and_bases.
- Base_(chemistry) wikiPageWikiLink Lithium_bis(trimethylsilyl)amide.
- Base_(chemistry) wikiPageWikiLink Lithium_diethylamide.
- Base_(chemistry) wikiPageWikiLink Lithium_diisopropylamide.
- Base_(chemistry) wikiPageWikiLink Lithium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Litmus.
- Base_(chemistry) wikiPageWikiLink Litmus_paper.
- Base_(chemistry) wikiPageWikiLink Louis_Lémery.
- Base_(chemistry) wikiPageWikiLink Magnesium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Magnesium_oxide.
- Base_(chemistry) wikiPageWikiLink Meerwein-Ponndorf-Verley_reduction.
- Base_(chemistry) wikiPageWikiLink Meerwein–Ponndorf–Verley_reduction.
- Base_(chemistry) wikiPageWikiLink Michael_reaction.
- Base_(chemistry) wikiPageWikiLink N-Butyllithium.
- Base_(chemistry) wikiPageWikiLink Neutralization_(chemistry).
- Base_(chemistry) wikiPageWikiLink Nitrogen.
- Base_(chemistry) wikiPageWikiLink Oxide.
- Base_(chemistry) wikiPageWikiLink Oxygen.
- Base_(chemistry) wikiPageWikiLink PH.
- Base_(chemistry) wikiPageWikiLink PH_indicator.
- Base_(chemistry) wikiPageWikiLink Paracelsus.
- Base_(chemistry) wikiPageWikiLink Potassium_fluoride_on_alumina.
- Base_(chemistry) wikiPageWikiLink Potassium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Precipitate.
- Base_(chemistry) wikiPageWikiLink Precipitation_(chemistry).
- Base_(chemistry) wikiPageWikiLink Protic_solvent.
- Base_(chemistry) wikiPageWikiLink Proton.
- Base_(chemistry) wikiPageWikiLink Resonance_(chemistry).
- Base_(chemistry) wikiPageWikiLink Rubidium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Salt.
- Base_(chemistry) wikiPageWikiLink Salt_(chemistry).
- Base_(chemistry) wikiPageWikiLink Salts.
- Base_(chemistry) wikiPageWikiLink Saturated_solution.
- Base_(chemistry) wikiPageWikiLink Saturation_(chemistry).
- Base_(chemistry) wikiPageWikiLink Self-ionization_of_water.
- Base_(chemistry) wikiPageWikiLink Sodium_acetate.
- Base_(chemistry) wikiPageWikiLink Sodium_amide.
- Base_(chemistry) wikiPageWikiLink Sodium_carbonate.
- Base_(chemistry) wikiPageWikiLink Sodium_hydride.
- Base_(chemistry) wikiPageWikiLink Sodium_hydroxide.
- Base_(chemistry) wikiPageWikiLink Solubility.
- Base_(chemistry) wikiPageWikiLink Solvent.