The reduction potential of the reaction Cr(3+)-------Cr(2+) is -0,41 V; the potential of hydrogen is zero so acids can be reduced with Cr(2+).
CR Snow was created in 1993.
carbon can not reduce more electropositive metallic oxides like of Mn and Cr. Thus carbon reduction process not applicable for reduction of oxides of metals like Mn and Cr .
Cr(OH)2
Cr(HCO3)2
Chromium has four oxidation states: 2, 3, 4, and 6. Chlorine has one, and it's -1. There will be a chloride for each oxidation state of chromium. Here they are: CrCl2 Chromium (II) chloride CrCl3 Chromium (III) chloride CrCl4 Chromium (IV) chloride CrCl6 Chromium (VI) chloride
The abbreviation Cr is the element chromium, a shiny metal.
In the ion-electronic chemical equation Cr+3 + e-1 => Cr+2, the Cr+3 ion is reduced.
sodium, Na is oxidized
Cr3br
+3 for Cr3+ ion
Co
C.R. England does NOT have a good reputation.
It has 4 d electrons.
It is a high gear which delivers the best gas mileage at higher speeds by reducing the engines's rpm's.
The terms "reducing agent" and "oxidizing agent" are relative. It seems that you already know this; that depending on the specific reaction, a given compound may be the reducing agent or the oxidizing agent, and in some reactions the same compound is both the oxidizing agent and the reducing agent. It is very important to remember that in an oxidization/reduction reaction, the reducing agent is oxidized and the oxidizing agent is reduced. Examples: 1) Aldehydes are one example of compounds that can act as reducing agents or oxidizing agents. As reducing agents, aldehydes can reduce Ag(I) in the form of [Ag(NH3)2]+ OH- to Ag metal. They can also reduce Cr(VI) to Cr(III) and Cu(II) to Cu(I). In each case, the aldehyde is oxidized to its corresponding carboxylic acid. As oxidizing agents, aldehydes (and ketones) can oxidize a hydride (H-) in sodium borohydride or lithium aluminumhydride to H+ as the aldehyde (or ketone) is reduced to an alcohol. Aldehydes and ketones are often used to form carbon-carbon bonds in aldol condensation reactions where a carbanion or an enolate ion attacks the carbonyl carbon of the aldehyde or ketone. In these reactions, the aldehyde or ketone is also reduced to an alcohol. 2) The nitrite anion is another example of a species that can serve as an oxidizing agent or a reducing agent in many reactions. Nitrite (formal charge of N+3) is readily oxidized to nitrate (formal charge of N+5) by the permanganate anion or it can be reduced all the way to ammonia (formal charge of N-3) by hydrogen sulfide. That's an impressive difference of six in the respective nitrogen oxidation states. Like aldehydes and ketones, nitrite can oxidize hydride to H+ in certain borohydride compounds in which nitrite is reduced to N2O, also known as laughing gas.
Yes, Here are the ranks (in order, there are 50 all told): RankRequired no. of cRRecruit0 cRPrivate7,500 cR(+7,500 cR)Corporal10,000 cR(+2,500 cR)CorporalGrade 115,000 cR(+5,000 cR)Sergeant20,000 cR(+5,000 cR)SergeantGrade 126,250 cR(+6,250 cR)SergeantGrade 232,500 cR(+6,250 cR)Warrant Officer45,000 cR(+12,500 cR)Warrant OfficerGrade 178,000 cR(+33,000 cR)Warrant OfficerGrade 2111,000 cR(+33,000 cR)Warrant OfficerGrade 3144,000 cR(+33,000 cR)Captain210,000 cR(+66,000 cR)CaptainGrade 1233,000 cR(+23,000 cR)CaptainGrade 2256,000 cR(+23,000 cR)CaptainGrade 3279,000 cR(+23,000 cR)Major325,000 cR(+46,000 cR)MajorGrade 1350,000 cR(+25,000 cR)MajorGrade 2375,000 cR(+25,000 cR)MajorGrade 3400,000 cR(+25,000 cR)Lt. Colonel450,000 cR(+50,000 cR)Lt. ColonelGrade 1480,000 cR(+30,000 cR)Lt. ColonelGrade 2510,000 cR(+30,000 cR)Lt. ColonelGrade 3540,000 cR(+30,000 cR)Commander600,000 cR(+60,000 cR)CommanderGrade 1650,000 cR(+50,000 cR)CommanderGrade 2700,000 cR(+50,000 cR)CommanderGrade 3750,000 cR(+50,000 cR)Colonel850,000 cR(+100,000 cR)ColonelGrade 1960,000 cR(+110,000 cR)ColonelGrade 21,070,000 cR(+110,000 cR)ColonelGrade 31,180,000 cR(+110,000 cR)Brigadier1,400,000 cR(+220,000 cR)BrigadierGrade 11,520,000 cR(+120,000 cR)BrigadierGrade 21,640,000 cR(+120,000 cR)BrigadierGrade 31,760,000 cR(+120,000 cR)General2,000,000 cR(+240,000 cR)GeneralGrade 12,200,000 cR(+200,000 cR)GeneralGrade 22,350,000 cR(+150,000 cR)GeneralGrade 32,500,000 cR(+150,000 cR)GeneralGrade 42,650,000 cR(+150,000 cR)Field Marshall3,000,000 cR(+350,000 cR)Hero3,700,000 cR(+700,000 cR)Legend4,600,000 cR(+900,000 cR)Mythic5,650,000 cR(+1,050,000 cR)Noble7,000,000 cR(+1,350,000 cR)Eclipse8,500,000 cR(+1,500,000 cR)Nova11,000,000 cR(+2,500,000 cR)Forerunner13,000,000 cR(+2,000,000 cR)Reclaimer16,500,000 cR(+3,500,000 cR)Inheritor20,000,000 cR(+3,500,000 cR)
RankInsigniaRequired no. of cRRecruit0 cRPrivate7,500 cR(+7,500 cR)Corporal10,000 cR(+2,500 cR)CorporalGrade 115,000 cR(+5,000 cR)Sergeant20,000 cR(+5,000 cR)SergeantGrade 126,250 cR(+6,250 cR)SergeantGrade 232,500 cR(+6,250 cR)Warrant Officer45,000 cR(+12,500 cR)Warrant OfficerGrade 178,000 cR(+33,000 cR)Warrant OfficerGrade 2111,000 cR(+33,000 cR)Warrant OfficerGrade 3144,000 cR(+33,000 cR)Captain210,000 cR(+66,000 cR)CaptainGrade 1233,000 cR(+23,000 cR)CaptainGrade 2256,000 cR(+23,000 cR)CaptainGrade 3279,000 cR(+23,000 cR)Major325,000 cR(+46,000 cR)MajorGrade 1350,000 cR(+25,000 cR)MajorGrade 2375,000 cR(+25,000 cR)MajorGrade 3400,000 cR(+25,000 cR)Lt. Colonel450,000 cR(+50,000 cR)Lt. ColonelGrade 1480,000 cR(+30,000 cR)Lt. ColonelGrade 2510,000 cR(+30,000 cR)Lt. ColonelGrade 3540,000 cR(+30,000 cR)Commander600,000 cR(+60,000 cR)CommanderGrade 1650,000 cR(+50,000 cR)CommanderGrade 2700,000 cR(+50,000 cR)CommanderGrade 3750,000 cR(+50,000 cR)Colonel850,000 cR(+100,000 cR)ColonelGrade 1960,000 cR(+110,000 cR)ColonelGrade 21,070,000 cR(+110,000 cR)ColonelGrade 31,180,000 cR(+110,000 cR)Brigadier1,400,000 cR(+220,000 cR)BrigadierGrade 11,520,000 cR(+120,000 cR)BrigadierGrade 21,640,000 cR(+120,000 cR)BrigadierGrade 31,760,000 cR(+120,000 cR)General2,000,000 cR(+240,000 cR)GeneralGrade 12,200,000 cR(+200,000 cR)GeneralGrade 22,350,000 cR(+150,000 cR)GeneralGrade 32,500,000 cR(+150,000 cR)GeneralGrade 42,650,000 cR(+150,000 cR)Field Marshall3,000,000 cR(+350,000 cR)Hero3,700,000 cR(+700,000 cR)Legend4,600,000 cR(+900,000 cR)Mythic5,650,000 cR(+1,050,000 cR)Noble7,000,000 cR(+1,350,000 cR)Eclipse8,500,000 cR(+1,500,000 cR)Nova11,000,000 cR(+2,500,000 cR)Forerunner13,000,000 cR(+2,000,000 cR)Reclaimer16,500,000 cR(+3,500,000 cR)Inheritor20,000,000 cR(+3,500,000 cR)