Question

Determine if Cr is oxidized, Given Problem. reduced, or neither. croy² (aq) + 2 H₂O + (aq) → Cr ₂ 0₂²-lag) | - + 3H2010 * The answer is neither oxidized or reduced I but I do not understand why. * +6 2- My reasoning :) +7 2- 2 croy2- → Cr2O72- If cr went from +7 to +6 it gained e- .: Cr i reduced. My math to determine charge : I 20* + 702- 2er* +80² 2x - 14 = -2 2x - 16 -2 2x = 12 2x = 14 x =+ X - 6

Answer 1

Hope you will like my answer:)

Given scacion, 2ero? (24.+2440+ (09.) -> (1207- (aq.) + 3,000) * Consider the Croz molecule. The first thing is that stochromating of the reaction is not considered in finding the oxidation State of any alom in a chemical reaction. .. In cron molecule, we know itnar dalion state of oxygen is 2. ler oxidation stare als er in cron be+x. The over all cro2- molecule has a 2 charge en ir Com (+) 4--2) = -2 ( 4 oxygen alors are - prevent in I cror- molecules 1X + Consider cr. 2 molecule. common cridation state of oxygen in 2: het oxidaten State of Cr dy ty. Overal charge on morealis 2. : (+y) x2 + 3x(-2) = -2 ( 2 er wrony A iyo Oxygen atoms) there is no change in oxidation state of chromrum in the reaction, Scanned with .. (r is neither oxidized non.co CamScanner reduced