: Anode ( oxidation ): 2 Cl < sup >–</ sup > → Cl < sub > 2 </ sub >( g ) + 2 e < sup >–</ sup >

: Anode ( oxidation ): 2 Cl < sup >–</ sup >( aq ) → Cl < sub > 2 </ sub >( g ) + 2 e < sup >–</ sup >

Anode: 2 Cl < sup >–</ sup >( aq ) → Cl < sub > 2 </ sub >( g ) + 2 e < sup >–</ sup > E °< sub > red </ sub > =

Anode: 2 H < sub > 2 </ sub > O ( l ) → O < sub > 2 </ sub >( g ) + 4 H < sup >+</ sup >( aq ) + 4 e < sup >–</ sup > E °< sub > red </ sub > =

: Anode Reaction: 2H < sub > 2 </ sub > + 2O < sup >– 2 </ sup > → 2H < sub > 2 </ sub > O + 4e < sup >–</ sup >

: Anode Reaction: CO < sub > 3 </ sub >< sup >- 2 </ sup > + H < sub > 2 </ sub > → H < sub > 2 </ sub > O + CO < sub > 2 </ sub > + 2e < sup >-</ sup >

( 1 ) Anode, ( 2 ) Cathode, ( 3 ) Ignitor, ( 4 ) Mercury, ( 5 ) Ceramic insulators, ( 6 ) Cooling fluid

1: Hydrogen 2: Electron flow 3: Load 4: Oxygen 5: Cathode 6: Electrolyte 7: Anode 8: Water 9: Hydroxyl Ions

A sizeable international security contingent of 2, 200 police and troops, led by Australia ( under the Australian Federal Police and Australian Defence Force name Operation Anode ) and New Zealand, and with representatives from about 6 other Pacific nations began arriving on 24 July 2003.

: E < sub > Cell </ sub > := E < sub > Cathode </ sub > − E < sub > Anode </ sub >

Simplified rotating anode tube schematic < ul >< li > A: Anode </ li >< li > C: cathode </ li >< li > T: Anode target </ li >< li > W: X-ray window </ li ></ ul >

: Anode: 2H < sub > 2 </ sub > O ---> O < sub > 2 </ sub >( gas ) + 4H (+) + 4e (-)

: Anode: Zn + 4OH < sup >–</ sup > → Zn ( OH )< sub > 4 </ sub >< sup > 2 –</ sup > + 2e < sup >–</ sup > ( E < sub > 0 </ sub >

An electric glow discharge tube featuring its most important characteristics: ( a ) An anode at one end and cathode at the other end ( b ) Aston Dark Space ( c ) Cathode glow ( d ) Cathode dark space ( also called Crookes dark space, or Hittorf dark space ) ( e ) Negative glow ( f ) Faraday space ( g ) Positive column ( h ) Anode glow ( i ) Anode dark space.

An electric glow discharge tube featuring its most important characteristics: ( a ) An anode and cathode at each end ( b ) Aston Dark Space ( c ) Cathode glow ( d ) Cathode dark space ( also called Crookes dark space, or Hittorf dark space ) ( e ) Negative glow ( f ) Faraday space ( g ) Positive column ( h ) Anode glow ( i ) Anode dark space. Hopkinson builds a team of researchers, one of whom is Harry Ricardo, the engineer who makes his name for his pioneering work on internal combustion engines.

* PCC ( pyridinium chlorochromate ), also referred to as the Corey-Suggs reagent, and PDC ( pyridinium dichromate ): widely used for the oxidation of alcohols to aldehydes.

The reaction sequence is also stereoselective, giving syn addition ( on the same face of the alkene ): the hydroboration is syn-selective and the oxidation replaces the boron with hydroxyl having the same geometric position.

Nitrification is a process of nitrogen compound oxidation ( effectively, loss of electrons from the nitrogen atom to the oxygen atoms ):

Reduction under anoxic conditions can also occur through process called anaerobic ammonium oxidation ( anammox ):

The oxidation state + 3 originates from the 6d < sup > 1 </ sup > 7s < sup > 2 </ sup > electronic configuration of actinium, that is it easily donates 3 electrons assuming a stable closed-shell structure of the noble gas radon.

The oxidation state + 2 is only known for actinium dihydride ( AcH < sub > 2 </ sub >).

Several other oxidation states are known, which range from + 2 to + 7 and can be identified by their characteristic optical absorption spectra.

The method initiates by converting mercury into Hg < sup > 2 +</ sup > by oxidation from nitric and sulfuric acids, followed by a reduction of Hg < sup > 2 +</ sup > with tin ( II ) chloride.

It always exhibits the oxidation state of + 2.

This trivalent oxidation state (+ 3 ) is the most stable, especially in aqueous solutions, but tetravalent (+ 4 ) and possibly divalent (+ 2 ) berkelium compounds are also known.

The role of the bacteria is the further oxidation of the ore, but also the regeneration of the chemical oxidant Fe < sup > 3 +</ sup > from Fe < sup > 2 +</ sup >.

The most common oxidation state of carbon in inorganic compounds is + 4, while + 2 is found in carbon monoxide and other transition metal carbonyl complexes.

Like zinc, it prefers oxidation state + 2 in most of its compounds and like mercury it shows a low melting point compared to transition metals.

Although cadmium usually has an oxidation state of + 2, it also exists in the + 1 state.

The oxidation state + 1 can be reached by dissolving cadmium in a mixture of cadmium chloride and aluminium chloride, forming the Cd < sub > 2 </ sub >< sup > 2 +</ sup > cation, which is similar to the Hg < sub > 2 </ sub >< sup > 2 +</ sup > cation in mercury ( I ) chloride.

2 cups / day ) significantly reduced lipid oxidation and increased plasma antioxidant capacity in women with metabolic syndrome.

Dysprosium combines with various non-metals at high temperatures to form binary compounds with varying composition and oxidation states + 3 and sometimes + 2, such as DyN, DyP, DyH < sub > 2 </ sub > and DyH < sub > 3 </ sub >; DyS, DyS < sub > 2 </ sub >, Dy < sub > 2 </ sub > S < sub > 3 </ sub > and Dy < sub > 5 </ sub > S < sub > 7 </ sub >; DyB < sub > 2 </ sub >, DyB < sub > 4 </ sub >, DyB < sub > 6 </ sub > and DyB < sub > 12 </ sub >, as well as Dy < sub > 3 </ sub > C and Dy < sub > 2 </ sub > C < sub > 3 </ sub >.

Being a typical member of the lanthanide series, europium usually assumes the oxidation state + 3, but the oxidation state + 2 is also common: all europium compounds with oxidation state + 2 are slightly reducing.

Electrochemical reactions in water are better understood by balancing redox reactions using the ion-electron method where H < sup >+</ sup >, OH < sup >–</ sup > ion, H < sub > 2 </ sub > O and electrons ( to compensate the oxidation changes ) are added to cell's half-reactions for oxidation and reduction.

: H < sub > 2 </ sub > S + 2 O < sub > 2 </ sub > → H < sub > 2 </ sub > SO < sub > 4 </ sub > ( sulfide oxidation )

The oxidation products derived from methyl are CH < sub > 2 </ sub > OH, CHO, and CO < sub > 2 </ sub > H.

A metallocene is a compound typically consisting of two cyclopentadienyl anions ( Cp, which is C < sub > 5 </ sub > H < sub > 5 </ sub >< sup >-</ sup >) bound to a metal center ( M ) in the oxidation state II, with the resulting general formula ( C < sub > 5 </ sub > H < sub > 5 </ sub >)< sub > 2 </ sub > M.

Selenium trioxide may be synthesized by dehydrating selenic acid, H < sub > 2 </ sub > SeO < sub > 4 </ sub >, which is itself produced by the oxidation of selenium dioxide with hydrogen peroxide:

On oxidation with potassium permanganate it yields acridinic acid C < sub > 9 </ sub > H < sub > 5 </ sub > N ( COOH )< sub > 2 </ sub > or quinoline-1, 2-dicarboxylic acid.

In modern science, it is generally accepted that most ignes fatui are caused by the oxidation of phosphine ( PH < sub > 3 </ sub >), diphosphane ( P < sub > 2 </ sub > H < sub > 4 </ sub >), and methane ( CH < sub > 4 </ sub >).

Cytochrome P450 enzymes perform the function of inserting an oxygen atom into a C — H bond, an oxidation reaction.

Likewise, OH ions flow to the anode to release electrons and an H ion to produce oxygen gas in an oxidation reaction.

The first step shows the oxidation of p-phenylenediamine to the quinonediimine ( C < sub > 6 </ sub > H < sub > 4 </ sub >( NH )< sub > 2 </ sub >):

The halogen radical has much lower energy than H · or OH ·, and therefore has much lower potential to propagate the radical oxidation reactions of combustion.

oxidation of these arenes by for instance dodecamethylcarboranyl ( B ) to the blue crystal solid H < sup >+</ sup > B < sup >-</ sup > complex is therefore easy.

Mucic acid, C < sub > 6 </ sub > H < sub > 10 </ sub > O < sub > 8 </ sub > or HOOC -( CHOH )< sub > 4 </ sub >- COOH, ( also known as galactaric or meso-galactaric acid ) is obtained by nitric acid oxidation of galactose or galactose-containing compounds like lactose, dulcite, quercite, and most varieties of gum.

Serpentinization is a geological low-temperature metamorphic process involving heat and water in which low-silica mafic and ultramafic rocks are oxidized ( anaerobic oxidation of Fe < sup > 2 +</ sup > by the protons of water leading to the formation of H < sub > 2 </ sub >) and hydrolyzed with water into serpentinite.

In the absence of atmospheric oxygen ( O < sub > 2 </ sub >), in deep geological conditions prevailing far away from Earth atmosphere, hydrogen ( H < sub > 2 </ sub >) is produced by the anaerobic oxidation of ferrous ions ( Fe < sup > 2 +</ sup >) present in the crystal lattice of the iron-endmember fayalite by the protons ( H < sup >+</ sup >) of water .< ref >

A hydrogenase is an enzyme that catalyses the reversible oxidation of molecular hydrogen ( H < sub > 2 </ sub >).

Hydrogen uptake ( H < sub > 2 </ sub > oxidation ) ( 1 ) is coupled to the reduction of electron acceptors such as oxygen, nitrate, sulfate, carbon dioxide, and fumarate, whereas proton reduction ( H < sub > 2 </ sub > evolution ) ( 2 ) is essential in pyruvate fermentation and in the disposal of excess electrons.