Oxidation Definition and 211 Threads

The answer I am getting is A but the answer given is D. I don't know why D because this is what I did. First I opened the alkene and then added OH on the less substituted carbon( Markonikov addition) and we know that Cu, Heat turns 3° alcohol to alkene so then I got an alkene. Did I do something...

This is a very good paper on the characterization and the techniques employed to look at the development and behavior of oxides on high-entropy (HE) alloys, in this case, CoCrFeNiMn. https://www.nature.com/articles/s41467-024-49243-8 Open Access

In order for a diamond to oxidize, do the covalent bonds have to be broken? What would happen if I put the diamond in an oven heated to 150 degrees Celcius? Would the reaction start and after some time the stone would disappear?

I’m still a relative newbie to chemistry so if this question is very simple to answer I apologise….. but what prevents the oxidation of a tertiary alcohol cause you can form an aldehyde and carboxylic acid from a primary alcohol and a ketone from a secondary but what is it that prevents a...

Hello, How come in XPS the binding energy gaps between oxidation states of vanadium oxide are not equally spaced? Is there a reason they are not all equally spaced? V2+ (VO) 513.0 eV V3+ (V2O3) 515.6 eV V4+ (VO2) 516.0 eV V5+ (V2O5) 517.1 eV Many thanks

We studied in chemistry that the concept of oxidation and reduction is the exchange of electrons between two chemical substance ,but when i started to study organic chemistry i saw that when we talk about for example the oxidation of a compound it can loss atoms and change his constitution...

Hi all, This forum looks amazing ! I'm trying to get my head around photocatalytic oxidation but I don't have a strong background in chemistry. I was specifically looking into the decomposition of phenyl isothiocyanate and trinitrotoluene using photocatalytic oxidation over TiO2 (assuming...

I saw on Wikipedia that Fe has both positive and negative oxidation states. I know that Fe will willingly give up its 2 electrons to form an ionic bond with O for example, making it Fe+2. 1. But how can Fe+3 exist? This means it gives up three electrons right? Does this mean the Fe atoms...

Hey, y'all. I know the oxidation state of a carbon in an ethene is -2 while carbon in Acetylene is -1. As well I know acetylene has more disspating elcetrons due to pai bonds. So how come charges between the acetylene carbon are more negative than in ethene while the carbones oxidations states...

I researched the solar collectors implemented in practice for water detoxification and I found out that the preferred design is the Compound Parabolic Concentrator. Knowing that I have no information regarding radiation beyond what's taught generally in heat transfer courses in chemical...

question fig: solution manual: my solution: oxidation state of central cobalt is +6 due to 6 oxygen surrounding it,The other cobalt is +2 due to 2 oxygen surrounding it with NH3 ligand which is no count for oxidation state.

I know that Jones reagent is a weak oxidant and can reduce primary and secondary alcohols and benzyl alcohol is primary,but then i remembered some exceptions,like fehling solution can not reduce aromatic compounds.So according to me Jones reagent can not reduce benzyl alcohol.Please tell me the...

imagine you burn something, like H2 in O2. let's say you have a nice flame with a temperature T. for the sake of this discussion let's assume that T is 1000. what happens if you preheat both H2 and O2 to 1000 first? is the resulting flame temperature higher? does the flame look the same? what...

Cl2(g) + 2I–(aq) -->I2(aq) + 2Cl–(aq) (reaction 1) [2S2O3^(2-)(aq) + I2(aq) --> S4O6(2-)(aq) + 2I–(aq) (reaction 2) Why isn't n(I2)(reaction 2)=2n(S2O3^(2-))(reaction 2). I don't see why this is wrong. <edit: remove size and italics>

I am seeing from my results that an oxidation process is taking place, the pollutants degradation correlates closely with the formation of radicals. However, in one case there are less radicals produced and there is no degradation... I would like to ask if on occasions there must be a...

I'm looking at the oxidation of I- ions by OH radicals to form iodine and finally triiodide. This is a well known method of dosimetry, however some consider it flawed because during disassociation of solution other radicals are produced such as H or O radicals. They could also potentially...

Homework Statement Calculate E cell for the following reaction at 25deg celcius 3 CU(s) + 2 MnO4-(aq) + 8 H+(aq) →2 MnO2(s) + 3 CU^2+(aq) + 4 H2O(l) Given: [CU^2+] = 0.010M, [MnO4-] = 2.0M, [H+] = 1.0M I’ve posted a picture of my work, if someone could just let me know if I answered the...

Homework Statement 2 IO3−(aq) + 6 H+(aq) + 10 I−(aq) →6 I2(s) + 6 H2O(l) I didn’t want to re-type all of this up but I uploaded of picture of my work for this problem. I was just wondering if I completed it correctly and if not if someone could guide me in the right direction. Thank you!

So I've been learning how batteries work. What I learned is that a battery consists of 2 pieces of metal both with different electronegativities. These metals react with an electrolyte. One metal (called the anode) is oxidized and has its electrons removed, leaving behind a positive ion which...

how to calculate , oxidation state of polyatomic ions like " acetate" C2H3O2 2(4)-3-4= +1 ? how do we know when carbon or hydrogen are sharing x electrons

Hi there. We are working on a school science project to compare how different catalysts in water splitting affect the energy/voltage needed to carry out the process. One of our catalysts will be Co-Pi, which is created by adding Cobalt-nitrate to a .1M phosphate buffer solution during...

I'm working on some decorative items made of copper. I'd like to have them achieve the brown color of an old copper penny (or the old copper pipes in my home). I've read you can do this with some chemicals, but due to size/shape I'd like to do this some other way. I'm also concerned that any...

Homework Statement Identify the element oxidized and the element reduced, in this chemical equation: H3AsO4+H2S ---> H3AsO3+S+H2OHomework Equations none The Attempt at a Solution [/B] So I have learned the rules for oxidation numbers: 1. The oxidation number of an element is always 0...

Quick note: Sorry for dominating the homework help board, guys! But, I wanted to say thank you to everyone who replies to my excessive questions. This forum's input has become integral to me as I am in a position now where I can't go to my teacher for help because of the logistics of commuting...

Homework Statement 2Ag2S(s) + O2(g) = Ag2O(s) + S(s) Which is being oxidized? Homework Equations N/a The Attempt at a Solution Reactants: Ag2S is neutral, with Ag having +1 charge and S having 2- charge. O2 is neutral Products: Ag2O is neutral, with Ag having a 1+ charge and O having -2...

Homework Statement In the laboratory how is MnSO4 oxidised to MnO4- in an acidic medium? a. NO3- b. O2 c. Cr2O72- d. S2O82- (NB: If I've posted this question in a wrong thread please tell me exactly the right place to post it rather than just deleting it and saying to post it in the right...

I have 2 queries and would be great if someone can lead me to some specific answers - 1. Is it possible to oxidise a complex hydrocarbon like Ethanol or Gasoline in a non-combustible but exothermic reaction? 2. If this kind of oxidation is possible, what would be the best catalysts to achieve...

I read that cells in human body are continuously oxidized. Can you explain in layman's term what this means? Is it possible to explain cell oxidation withot reference to "electron loss." Because I cannot imagine visually how a cell can lose an electron or what that means.

Hi, In a water that contains manganese, iron and ammonium, I wondered what interaction they have with each other in terms of oxidation? I understand that they all oxidise but which element would oxidise first? Is it as simple as looking at the element and the shells to see which would lose an...

By using oxidation numbers can someone show me what is oxidised and reduced Fe203+3co->2Fe+3co2

I am trying to work out which is oxidised and reduced in this reaction2mg + o2 ->2mgo so the mg has a oxidation number of 2+ and the oxygen has a oxidation number of 3+. I am not sure what the oxidation numbers of magnesium and oxygen are in magnesium oxide as it does not work out and it is not...

What is the difference between valence factor and n-factor for oxidants and reductants? Take ##H_2O_2## as an example. What is the difference between the n-factor and valence factor for this compound? Also, how do I find the n-factor for any oxidant or reductant?

I understand the concept of oxidation states and how to find them, but what confuses me is how an atom "decides" which oxidation state to choose. Or even "what it is at all" that decides the oxidation state. Specifically, the transition metals with multiple oxidation states seem to be the...

When beryllium donates a pair of electrons to oxygen, that's oxidation, and the metal is Be(II). When carbon and oxygen share 6 electrons, 2 from carbon and 4 from oxygen, this is also oxidation. Of carbon. Even though it got more electrons, and even, I heard, has a negative charge. When...

I have watched many videos of aluminium air batteries and it got me wondering. Could this same process work if you stored the aluminum in vacuum and exposed it to oxygen? For example: A high surface area aluminium plate is in a glass bulb under high vacuum. A copper lead connects to the...

Not sure if this is Chemistry or not, but how would one increase oxidation in an object?

In a laboratory experiment I have tested plain carbon steel in a beaker of bleach (sodium hypochlorite), immersed for a week. The result is a magenta-coloured solution with a large amount of ferrous hydroxide deposits. Q1) I haven't been able to find anywhere anything that might be causing...

One method to oxidize aldehyde is by using acidified potassium dichromate(VI) solution The step: A small amount of potassium dichromate(VI) solution is acidified with dilute sulphuric acid and a few drops of the aldehyde is added. If nothing happens in the cold, the mixture is warmed gently for...

Homework Statement How can I find oxidation number of N in N2O using lewis dot structure? Homework Equations None The Attempt at a Solution Is the structure of N2O like this:

In a lab we oxidized benzhydrol to produce benzophenone. We use glacial acetic acid and sodium dichromate dehydrate to oxidize the benzhydrol. Then we set up the first extraction with water and CH2Cl2 and the second with NaHCO3 and CH2Cl2. I am trying to figure out what all of the...

I have googled it and cannot find anything. Apparently the rule that transition metals want full or half-full orbitals is false. I understand why the 4s orbital would be lost but I don't understand why some d electrons would be lost. For example in Mn6+, the electron configuration would be [Ar]...

Homework Statement If a metal is highly susceptible to oxidation, what effect might this have on calculating the quantity of heat transferred to a metal? Use specific examples. Homework Equations Q=mcΔT The Attempt at a Solution Would oxidation change the specific heat of the metal? Since...

What is the Oxidation Number of Carbon and Nitrogen In this compound (NH4)2C2O4?? i think the oxidation number of carbon is (+4) and Nitrogen is (-4). am i true?? or not? Note:this is not a homework.

Dear PF Forum, I think I have asked too many question for one day. I'm trying to understand antioxidant and free radicals. But, first I'd like to understand oxidation number. The oxidation number for hydrogen is +1 or -1. I can understand that. Either Hydrogen must lost one electron or gains one...

Hello. I've learn that fire is chain-reaction process when burning materials are surrounded by oxygen with enough amount and they're heated exceeding some ignition point. That point is nothing but the temperature above which oxidation between material and oxygen begins. Then during...

Homework Statement Problem 18B.13 from Transport Phenomena, BSL. Tarnishing of metal surfaces. In the oxidation of most metals the volume of oxide produced is greater than that of the metal consumed. This oxide thus tends to form a compact film, effectively insulating the oxygen and metal from...

The apparatus consisted of a one gallon air tight clear plastic jug one quarter filled with ferrous chloride (uh, Fe(II)Cl ?), water and sufficient hydrochloric acid to complete the transformation. The remaining space was filled with oxygen at atmospheric pressure. When triggered a mechanism...

Homework Statement The oxidation state of oxygen in all compounds is -2, except in peroxides such as H2O2, Na2O2 and BaO2 where it is -1. If it is -1, then why can't we write H2O2 and Na2O2 as HO and NaO respectively?

Hello, I am a physics major and my friend is on a research vessel in the Arctic and can only operate email from the limited internet access there. I do not know organic chemistry so I was hoping someone could tell me if this was right (it is for homework when she returns; not in relation to her...

Hi all, Here's my first post with a question I've been trying to solve for a while. I work with electronic components of very high quality and we try to make all our connections using thin copper ribbons of various thickness. I have started cleaning my copper connections with a solution of...