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[[Image:Large bonfire.jpg|thumb|250px|A bonfire. Combustion consists of redox reactions involving [[Radical (chemistry)|free radicals]].]] '''Redox''' (shorthand for '''reduction/oxidation''') describes all [[chemical reaction]]s in which atoms have an increase or decrease in [[oxidation numb ...

== Chemical equilibrium == ...idea which describes the behavior of [[chemical reaction]]s over time. In reactions that have finished reacting and have attained equlibrium, the concentration ...

A '''chemical reaction''' happens when one or more [[chemical]]s are changed into one or more other chemicals. Examples: * many reactions that happen inside living things, such as [[photosynthesis]] ...

== Chemical background == Some [[chemical reaction]]s happen during discharging: ...

==Enthalpy and chemical reactions== When a [[chemical reaction]] happens, a substance can become warmer or colder. As a result, h ...

The '''spontaneity''' of a process refers to whether or not the [[Chemical reaction|reaction]] would occur without an input of [[energy]], because of In equilibrium reactions, a reaction one way will be spontaneous, while the reverse reaction will be ...

...]s into many smaller units. In this reaction, water is always added to the chemical compound. ...rs the water [[molecule]]'s electron density. This in turn increases the [[Chemical polarity|polarity]] of the O-H bond, which now acts as a proton donor under ...

'''Xenon difluoride''' is a [[chemical compound]] with the [[chemical formula|formula]] XeF₂. This [[noble gas]] compound can be used ...n results in the pure substances [[flourine|fluorine]] and [[xenon]]. This reactions happens explosively, even though that the [[enthalpy]] of reaction is negat ...

...measuring the properties of materials in a chemical reaction. The chemical reactions usually take place under some simple constraints such as constant [[pressur | title = Use of Legendre transforms in chemical thermodynamics ...

...hermochemistry''' is the study of the [[energy]] and [[heat]] to do with [[chemical reaction]]s and physical transformations (physical changes). Physical trans ...he concepts of [[thermodynamics]] with the idea of energy in the form of [[chemical bond]]s. It includes calculations of such quantities as [[heat capacity]], ...

An '''electrocyclic reaction''' is a specific kind of [[chemical reaction]]. It is known from [[organic chemistry]], a branch of [[chemistry ...=http://www.iupac.org/goldbook/E01948.pdf|encyclopedia=IUPAC Compendium of Chemical Terminology|edition=Second|date=1997|title=electrocyclic reaction|accessdat ...

...is [[carbon]] and O is [[oxygen]]. The double lines represent the double [[chemical bond]] between the [[atom]]s.]] '''Carbon dioxide''' (CO₂) is a [[chemical compound]] and is acidic. It is a [[gas]] at [[room temperature]]. It is ma ...

...ntains the [[electron]]s most likely to be involved in [[chemical reaction|reactions]]. [[Category:Chemical bonding]] ...

...ific unit. It is the [[reaction quotient]] of a [[chemical reaction]] at [[chemical equilibrium]]. The equilibrium constant can help us to understand whether t ...tionships between the products and the reactants of a chemical reaction at chemical equilibrium in different units. [[Dissociation constant]]s can be used as a ...

...studied. There are two main branches of Metallurgy. They are physical and chemical metallurgy. A Metallurgist is individual who researches, manufactures and d == Chemical Metallurgy == ...

...''') is a [[chemical substance]]. It is an [[organic chemistry|organic]] [[Chemical compound|compound]]. Chloroform is one of the [[wikt:intermediate|intermedi The four [[chemical compounds|compounds]] get then separated with a [[distillation]]. ...

...Section E) a general discussion | year = 1940 | journal = Journal of the Chemical Society (Resumed) | pages = 979}}</ref> ...arbocation formation. The S_N1 mechanism therefore dominates in reactions at [[tertiary alkyl]] centers and is further observed at [[secondary alkyl] ...

[[image:Introduction.png|thumb|300px|right|Figure 1. Pericyclic Reactions]] ...ion]] where one [[atom]] on one of the [[Reagent|reagents]] gets two new [[chemical bonds|bonds]]. A pericyclic reaction is one that involves a transition stat ...

The '''Grignard reaction''' (pronounced {{IPA|/ɡriɲar/}}) is a [[chemical reaction]] (in the field of [[chemistry]], or [[organometallic chemistry]]) ...f Alkali and Alkaline Earth Cations: (Ii) Selectivity of Carbonyl Addition Reactions ...

...occur in soil and water and are organisms that derive energy from chemical reactions (chemoautotrophic). They possess compartments inside their cells, which con ...r2-first=Charles P.|editor3-last=Gentry|editor3-first=Terry J.}}</ref> The chemical reaction is shown below.<ref>{{Citation|last=Prosser|first=J. I.|title=NITR ...