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🙏
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
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! :)
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
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
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
@@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
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
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."
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.
Yes, however I do have a playlist specifically for CIE that may be more beneficial - Year 1 - ua-cam.com/play/PLX4e2DxFRGQKhQ5lOY2mlX7aFFeXynEIk.html Year 2 - ua-cam.com/play/PLX4e2DxFRGQJ-SuHk19cJhRtRGiHylXq3.html
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🙏
No problem 😊
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
But you explained this rlly well. Thank you :)
Thank you for these videos. I missed a lesson on this topic and managed to grasp this instantly.
This guys coming in clutch for the mocks 😂
Thanks so much this video has made life much easier, can't thank you enough
Thank you this was very helpful I like how you lay out your videos and learnt just now about the hydride and peroxide :)
This finally makes sense thank you so much!
Your one video helped me understand this topic instantly compared to the hours of struggling in school!
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! :)
You're very welcome! No problem at all taking notes.
so well taught! thank you sir
thanks for these videos. perfect timing :)
No problem
THANK YOU SO MUCH!!!
Life saver 👏 👏 😅
great video! Thanks :)
Glad you liked it!
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
@mikaiel shuaib y bro?
THE BEST !!!!
Day before Pre mock mocks. Been a great help thank you very much 😍😘👍
Sir please add some more videos ...
@Allery chemistry 18.36 what did u say right after simultaneous equations ☻☻☻
you're my mostttt favourite youtuber
Thanks 😊
much love my G
what grade did you get in chem
Hello, I find balancing the charges to be quite difficult. Is there some way to get my head around it? Thanks
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
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
Amazing... Thanks a lot😊😊😊😊😊
I miss a level revision. Uni chem is so much harder
Woo hoo! I did chemistry at uni too, which university are you studying at?
Birmingham. And thought i'd just say that your videos helped me get an A in A level chemistry last year XD. Thank you.
Ah I looked at Birmingham. Has it's own train station so I remember! Nice area - Edgbaston.
his videos are lifesaving
@@gulaidahmed990 How was it? I was considering UoB
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?
wondering the same thing, hopefully you got an answer seeing as this was 4 years ago
@@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
How r u now
This is so hard
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
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
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."
What did you say about the peroxide? And then you said it was smart?
What was the time where I said that?
6:58 ish
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.
For Mn2+ wouldn't the oxidation state be 0 as all elements have oxidation state of 0????
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!!!!
Mn2+ is an ion not an element though
Could this work for cie
Yes, however I do have a playlist specifically for CIE that may be more beneficial -
Year 1 - ua-cam.com/play/PLX4e2DxFRGQKhQ5lOY2mlX7aFFeXynEIk.html
Year 2 - ua-cam.com/play/PLX4e2DxFRGQJ-SuHk19cJhRtRGiHylXq3.html
@@AlleryChemistry thank you alot