Hi everyone, please be aware the lines on the battery are drawn the wrong way around. The shorter line should be on the left (connected to the cathode), and the longer line should be on the right (connected to the anode). Apologies for the mistake :)
something about electrolysis is so hard for me that i never understood it. this video was my last hope and i was literally about to give up when i understood it after tons of vids so THANK YOU
Thank you so much for this. I did really bad on the last test about electrolysis and have been stressed loads about learning it but you teach in such a calm and clear way, THANK YOUUU !!!!
I couldn't thank you enough on how much these videos have helped me throughout my learning journey where my school teachers really arent helping at all. Your explanation are such wonderful in a way that it is straight to the point, but also understandable and quick to understand. Props up to you and your teams for all this wonderful work!!!
My teacher recommends using the acronym ‘PANIC’. Positive Anode Negative Is Cathode And ‘OILRIG for oxidation and reduction: Oxidation Is Losing Reduction Is Gaining
In electrolysis +ions > cathode(-) > gain electron > reduced . And -ion >anode (+) >lose electron >oxidised. However , Fuel cell cathode (+) and anode(-)
You guys can also watch Tyler Dewitt's videos on Electrolysis,Electroplating,Galvanic cell.But some topics are left out there like Electrolysis of Aluminum Oxide and Electrolysis of Aqueous Solutions.For that you can watch free science lessons videos.
Okay, I have a question. So, the Pb ions gain electrons at the negative electrode but where are these electrons coming from? Is it the metal (from which the electrode is made) because the metal has free electrons and the Pb ions gain those free electrons?
So just for anyone who wants to remember the reduction and oxidisation meanings you can use this simple mnemonic OILRIG Oxidisation Is Loss of electrons Reduction Is Gain of electrons
don't you just note down what you see, my chem teacher said anything you can describe with your 5 senses, like if you see bubbling that's an observation, if you see a layer of deposit on the bottom that's an observation, if it makes a particular smell that's an observation too
@@EthanLee-dv1ec I think it's not focused on one specific spec, it covers what will be on most of the exam boards and anything extra for your exam board that he hasn't done, you have to do yourself
No actually if u search the periodic table ( the colour coded one), u will see that lead is part of the “other metals” which is not part of the groups. Lead is considered like the transition element and has +2 charge
Hi I am revising for this topic and I don’t know which required practical or metal I’m suppose to know about electrolysis there are so many examples with different elements and I don’t know if I’m suppose to know all. I am doing aqa science by the way and it would help if anyone knew thank you !
hello, i really enjoy ur teaching . What app do u use to present ? it seems such a nice way for explaination since Im a teacher and looking for interactive, easy and good ways to explain lessons to my students . Hope u respond
Hi everyone, please be aware the lines on the battery are drawn the wrong way around. The shorter line should be on the left (connected to the cathode), and the longer line should be on the right (connected to the anode). Apologies for the mistake :)
It's OK everyone makes mistakes
OK
No problem, the sign of battery really doesn't matter that much in Chem
It's totally OK. Cause I didn't even notice it.😅
thank you so much for correcting yourself - i got scared i did it wrong in my test 😅
Thank you so much ..... never thought its so easy !!!! .... my chemistry teacher should be your student !!
Same here, my chemistry teacher is utterly useless
@@mopthefloorezard4699 I can relate
😂😂😂
My teachers are fine its just I just need a bit more explanation to understand the topic
@@account-21 i agree
Cognito is the best channel for IGCSE science. I got 7A*s and cognito certainly helped make that happen. Thank you
Ma Sha Allah
I know it's kinda late but still congrats
Me 2 I got 7A'* (I take 8 subjects) got an A in English cause I suck at it
Good bro mashallah @@Dr.AlyAzzam
@@Dr.AlyAzzam what were ur gcse options?
My teacher recommended these videos for revision for my GCSE's and I can understand why! These videos are so useful
I didn’t ask
@@Jacobinks No one asked you to reply.
@@Jacobinksof course it's someone named jacob
what did u get in ur results?
@@lexadewil averaged a 6
Your the only person who could explain this properly to me, thank you!
For anyone it may help, mnemonic for oxidation and reduction at anodes and cathode
An Ox- anode oxidation
Red Cat- reduction cathode
certified Tyler DeWitt moment
Ty that’s rly helpful :D
@@cheeseypuff9819 your welcome ;)
my teacher is so funny, he helped us remember with CATions are PUSSYtive, and anions sound like onions, onions make you cry, and so are negative
@@lilysmith1673 Oml 😭
dislikes are from our chemistry teachers :)
fr cognito be saving us
😂
No, my chemistry teacher gave up- and just told us to watch cognito for revision.
What about people who are coming from there chemistry teachers
Harsh reality 😂😂😂😂
something about electrolysis is so hard for me that i never understood it. this video was my last hope and i was literally about to give up when i understood it after tons of vids so THANK YOU
So glad we could help out Hafsa, thank you for the comment 😊
Thank you so much for this. I did really bad on the last test about electrolysis and have been stressed loads about learning it but you teach in such a calm and clear way, THANK YOUUU !!!!
Thanks, glad we could help Daisy 😊
God bless you! Because of your videos I’m sitting in higher paper this time instead of foundation Thank You😊!
this is so wholesome
Thanks a lot. I needed this.
Very welcome Rashi, thanks for the comment - really appreciate it as it helps the videos get seen :)
I couldn't thank you enough on how much these videos have helped me throughout my learning journey where my school teachers really arent helping at all. Your explanation are such wonderful in a way that it is straight to the point, but also understandable and quick to understand. Props up to you and your teams for all this wonderful work!!!
this was the most useful video ive ever watched genuinley. thank you 😩
These videos are so much better than my teacher's lessons!
Drawing this diagram out with all the labels and half equations and other notes makes one heck of a difference
My teacher recommends using the acronym ‘PANIC’.
Positive
Anode
Negative
Is
Cathode
And ‘OILRIG for oxidation and reduction:
Oxidation
Is
Losing
Reduction
Is
Gaining
yea that really helped
Fr same lol
i love you i love this channel idk what id do without this
I HATE this topic i just dont understand itttt
Same :(
Same bruhh , this topic literally sucks
It took me a whil but now I get it, just keep practicing and it will be easy you got this 😊
Really 🥺
fr
U dont get enough recognition like you taught me what i coudnt understand and saved me a whole hour to understand from the book
what i would do to have this guy as my teacher. I understood my entire chemistry chapter because of him
Have my chemistry gcse today, never understtood electrolysis despite intensive lesrning on it but this video has helped so much
Ty
my teacher literally avoided teaching us this, i’m so thankful you exists!
man this is gold
2:42 it’s so clear for me! Thanks!
your videos really helped me. thank you
Hey Tania, thanks for the comment - really happy to hear it was useful to you :) good luck with your studies!!
My goodness! My chemistry teacher was so confusing but now I have ascended to a higher state of being (can understand half-equations)
oml this video saved me bro im studying for tomorrow's test and i barely knew anything bout this topic😭😭
The most annoying and worst topic of chemistry after moles don't love this topic. But the Sir teaches it is cleared to me in just 4 minutes ❤
the video is great really.....but there is a mistake at 1:47 where the longer side at the battery is positive and it is supposed to be on the anode
yea he that could really affect everytheverything
You made the concept crystal clear to me!! Thanks🙏😀
wow i learnt more from this than a whole year of chemistry lesson!
best explanation ive found so far
Bruh I can never thank you enough for this!
🤩
Very Help full video my Paper's are soon and it helped a lot THANK YOU! for help
OH MY GOSH. Thank you so much. These videos are really helping me. THANK YOU!!!!!
Great content! Just to check, is there a mistake with the polarities of the batteries?
Hi Marcus - yep! Explained a bit in the pinned comment :)
I’ve been focusing sm on reading the comments I gtg watch this video again
excellent video you make it so easy to understand and don't miss out any key info
At the end of the day it’s just you and Cognito
i remeber that the anode is the positive one because it sounds similar to a nod
Tysm I didn't understand it before but now it's perfectly clear 😊
This is actually so simple ❤❤❤
he makes it so simple
Very good video, the best chemistry teacher in my opinion!
1:24 u messed up the sides the anode is on the left and the cathode is on the right.
Thanks I have an exam in electrolysis in week, these videos helped alot
In electrolysis +ions > cathode(-) > gain electron > reduced .
And -ion >anode (+) >lose electron >oxidised.
However , Fuel cell cathode (+) and anode(-)
Very easy to follow. Thank you.
You’re very welcome!! Also thanks for the comment Nike! It really helps us get the videos to be seen! 🥳
explained it better than my teacher ever did, you just saved my mock grade!
Same
ThIS VIDEO WAS SO HELPFUL!!! THANKS SO MUCH COGNITO
Bro is unknowingly saving our lives years in the future 😅
You guys can also watch Tyler Dewitt's videos on Electrolysis,Electroplating,Galvanic cell.But some topics are left out there like Electrolysis of Aluminum Oxide and Electrolysis of Aqueous Solutions.For that you can watch free science lessons videos.
Bruh this literally made no sense to me till I watched this tysm
Thank you so much sir! Don't stop to help us. keep doing it!!
Thank you sooo much. I watched other videos but they were too quick. You explained it so clearly. Thank you once again.
Thank you, very helpful
You're very welcome! Thanks for the comment and good luck with all your work :)
i literally love ur vids tyysm
You are an amaizing teacher thank youuuuuu
Explained it so much better than my teachers
Thank you! This is so helpful
I just hate Chemistry like why are we even learning about electrolysis
fr
to get good gcses
😂😂
Okay, I have a question. So, the Pb ions gain electrons at the negative electrode but where are these electrons coming from? Is it the metal (from which the electrode is made) because the metal has free electrons and the Pb ions gain those free electrons?
my teacher told us to watch this video and i understood everything!!!thank you!!!
A mnemonic for oxidation is losing electrons and reduction is gaining electrons is
OIL - oxidation is losing
RIG - Reduction is gaining
1:45 shouldn’t the negative part of the battery cell be at the cathode and the positive part of the battery cell be at anode?
Exactly my thoughts
Thank you so much, you helped me a lot, You're the best ❤
at 3:00 the half equation on the right, can I ask if you can write like 2Br - 2e ----> Br2 ??
No because its being oxidized losing electrons so no
Thank you so much :)))))) not only in chemistry also in math videos, so have a great day man :)
2:20 how will the bromine atoms pair up if they are neutral? Can someone explain?
it is because it is br2 which means the bromine are always toghther
@@yakulyee9326 ok thanks :)
@daisy ok tyy
So just for anyone who wants to remember the reduction and oxidisation meanings you can use this simple mnemonic
OILRIG
Oxidisation
Is
Loss of electrons
Reduction
Is
Gain of electrons
Only my school teaching this in year 8 and me sitting here trying to understand. Thanks for the help I got an A on my assignment
the video is great but i just have a question: how do you determine the observation after the compounds have been electroylsed?
don't you just note down what you see, my chem teacher said anything you can describe with your 5 senses, like if you see bubbling that's an observation, if you see a layer of deposit on the bottom that's an observation, if it makes a particular smell that's an observation too
cognito youre amazing ty
You really are the best 🤭🤩
Brilliant, u simplified this very well
Glad it helped 👍
thanks my teacher made this more confusing than it actually is, everything's come together just in time for the exam tomoroww
Why does hydrogen get produced at the cathode?
Thanks so much I never understood this but now it’s easy 👍
Hi Cognito, just a little question- why do the bromide atoms only give two electrons to the positive anode? Thanks!
There are only 2 electrons in the bromide to transfer.
@@char-elle Thanks! I was in Y8 at the time, went back to this question a year later- I was so dumb 🤣🤣
i have a chemistry quiz coming up, do you think i should study only from your videos? like do these videos cover the syllabus?
Depends on which specification you’re following 🧐
@@Cognitoedu Which specification does this follow? Edexcel? AQA? etc
@@EthanLee-dv1ec I think it's not focused on one specific spec, it covers what will be on most of the exam boards and anything extra for your exam board that he hasn't done, you have to do yourself
Can someone please explain why lead ions have a 2+ charge they are in group 4 so i dont understand
True, idk either
No actually if u search the periodic table ( the colour coded one), u will see that lead is part of the “other metals” which is not part of the groups. Lead is considered like the transition element and has +2 charge
How do you know that pb has a 2+ charge
i need to know this too
ooo my dayyys love u bro
in most books and videos, doesnt the anode be on the left and cathode on the right?
Just here to fill in the learning gap that online classes gave me.
Thank you.
when do you use electrolysis for molten vs aqueous?? my chem teacher said electrons cant flow in molten but some books said it can...
Thank you so much! This was very helpful!
thank you! it finally makes sense omg
Thank you have you done videos on the brain and its functions?
Or do you not do those types of science?
yo whtasd da problem gay bithc nigga
i love you sm
Can we find the products of electrolysis of molten CuSo4
Hi I am revising for this topic and I don’t know which required practical or metal I’m suppose to know about electrolysis there are so many examples with different elements and I don’t know if I’m suppose to know all. I am doing aqa science by the way and it would help if anyone knew thank you !
SO this is basically used to separate a compound that has been chemically changes??
Are the batteries the wrong way because the positive is toward cathode
hello, i really enjoy ur teaching . What app do u use to present ? it seems such a nice way for explaination since Im a teacher and looking for interactive, easy and good ways to explain lessons to my students . Hope u respond
can someone please tell me why the lead has a charge of 2+ please im begging
Can cuso4 be free to move through the electrolyte
The labelling of anode n cathode is incorrect. Since the battery terminals have been inverted as per how u've labelled it...
Thanks so much this is very helpful
amazing video!!
Great video