AQA 1.7 Oxidation, reduction and redox reactions REVISION

[@Tsy172]

even though some of my classmates told me redox is simple...i struggled with it for a long time but thanks to your videos,i understand it more.Thank you a lot🙏

[@AlleryChemistry]

No problem 😊

[@muon1]

17:15 important to say that when balancing charges you consider the overall charge on the species, not to get confused with the oxidation states of the atoms within the species

[@muon1]

But you explained this rlly well. Thank you :)

[@tanmaysbotarmy3092]

a fantastic video as always! a tip to learn the priorities is 'fairies hate orange clovers' - fluorine, hydrogen,oxygen,chlorine

[@AvaSun-yo2wy]

Thank you for these videos. I missed a lesson on this topic and managed to grasp this instantly.

[@rosemaryjoy9114]

Thank you so much for your videos sir! I hope you don't mind me writing out notes from your PowerPoint slides from these videos as notes for revision - they are just so concise and very well explained! :)

[@AlleryChemistry]

You're very welcome! No problem at all taking notes.

[@gunzup1286]

This guys coming in clutch for the mocks 😂

[@jasonsteve2481]

Your one video helped me understand this topic instantly compared to the hours of struggling in school!

[@rayyankhan4072]

Thanks so much this video has made life much easier, can't thank you enough

[@charlotteerika2455]

when I tell you you have a special place in my heart with all the youtube science gods I hope you understand what I mean x primrose kitten and freesciencelessons are also in that place btw

[@medicusv61]

@mikaiel shuaib y bro?

[@minty7825]

Thank you this was very helpful I like how you lay out your videos and learnt just now about the hydride and peroxide :)

[@moomarn1797]

thanks for these videos. perfect timing :)

[@AlleryChemistry]

No problem

[@halalmadrid3765]

you're my mostttt favourite youtuber

[@AlleryChemistry]

Thanks 😊

[@freddytate7396]

This finally makes sense thank you so much!

[@arinarahman3758]

I loved your explaniation. Thanks a lot. It was understandable

[@nafisac3782]

much love my G

[@Xxxkska]

what grade did you get in chem

[@C1_YT]

Day before Pre mock mocks. Been a great help thank you very much 😍😘👍

[@charlottem4733]

great video! Thanks :)

[@AlleryChemistry]

Glad you liked it!

[@kirenrashid1516]

Hi, quick question, do you think these revision videos go into enough detail or should I watch the subtopic videos for more depth of knowledge?

[@thinkdontshoot8065]

wondering the same thing, hopefully you got an answer seeing as this was 4 years ago

[@justinn6865]

@@thinkdontshoot8065 Been 2 weeks on, but i think these have a good amount of detail but, if you are struggling on a specific part then watch a subtopic video imo

[@TopG20073]

How r u now

[@laibaasad1531]

This is so hard

[@zaynbye4275]

These are the only resource I use for content knowledge and I get consistent A*’s, however I would say it’s necessary to do PPQ’s to fill in the gaps

[@bamzy1095]

Life saver 👏 👏 😅

[@hasili4413]

so well taught! thank you sir

[@illieabdikadir156]

THANK YOU SO MUCH!!!

[@ghalakaldousari]

THE BEST !!!!

[@bobbk8435]

What did you say about the peroxide? And then you said it was smart?

[@AlleryChemistry]

What was the time where I said that?

[@bobbk8435]

6:58 ish

[@AlleryChemistry]

Yes. the 'peroxide' bit just means 'for every oxide' so hydrogen peroxide is a 'hydrogen for every oxide'. Just giving the meaning behind the 'peroxide' bit that's all.

[@gulaidahmed990]

I miss a level revision. Uni chem is so much harder

[@AlleryChemistry]

Woo hoo! I did chemistry at uni too, which university are you studying at?

[@gulaidahmed990]

Birmingham. And thought i'd just say that your videos helped me get an A in A level chemistry last year XD. Thank you.

[@AlleryChemistry]

Ah I looked at Birmingham. Has it's own train station so I remember! Nice area - Edgbaston.

[@spine747]

his videos are lifesaving

[@icecold4085]

@@gulaidahmed990 How was it? I was considering UoB

[@hashizak3252]

I don’t understand why the oxidation number of any poly atomic atom isn’t always 0 as the electrons are passed around in that molecule so the electrons gained by one atom = the electrons lost by another. Wouldn’t this always make the overall oxidation number 0

[@muon1]

this might be a bit late but you are right. It is always 0 "By definition, the oxidation number of an atom is the charge that atom would have if the compound was composed of ions. 1. The oxidation number of an atom is zero in a neutral substance that contains atoms of only one element. Thus, the atoms in O2, O3, P4, S8, and aluminum metal all have an oxidation number of 0."

[@coolgayguy]

Hello, I find balancing the charges to be quite difficult. Is there some way to get my head around it? Thanks

[@muon1]

Make sure you are considering the overall charges on the compounds and not the individual oxidation numbers of each atom within the compound e.g. sulfate ion has overall charge of 2- which is what we consider when balancing charges, not to be confused with oxygen's oxidation number of 2- and sulfur's oxidation number of 6+ which have no effect whatsoever on balancing overall charge. Hope this helps

[@muon1]

also just remember we want each side of the equation to have the same overall charge, if before the reaction we have an overall charge of 1- when adding together the charges of all species, after the reaction we must still have 1- overall, as to conserve charge

[@Aako-h4j]

Is this as chem

[@abdirahmanmohamed7445]

@Allery chemistry 18.36 what did u say right after simultaneous equations ☻☻☻

[@TopG20073]

Could this work for cie

[@AlleryChemistry]

Yes, however I do have a playlist specifically for CIE that may be more beneficial - Year 1 - kzbin.info/aero/PLX4e2DxFRGQKhQ5lOY2mlX7aFFeXynEIk Year 2 - kzbin.info/aero/PLX4e2DxFRGQJ-SuHk19cJhRtRGiHylXq3

[@TopG20073]

@@AlleryChemistry thank you alot

[@ta647]

For Mn2+ wouldn't the oxidation state be 0 as all elements have oxidation state of 0????

[@miacabell7582]

ions always have the same oxidation state as their charge, because mn has a charge of +2 it’s oxidation state would also be +2. hope this helps!!!!

[@puddleduck1405]

Mn2+ is an ion not an element though

[@sachinsaxena9975]

Sir please add some more videos ...

[@nowrinzamanprova9420]

Amazing... Thanks a lot😊😊😊😊😊