GCSE Chemistry - Oxidation and Reduction - Redox Reactions #39 (Higher Tier)

Sdílet
Vložit
  • čas přidán 2. 06. 2024
  • In this video we cover:
    - Oxidation and reduction in terms of oxygen and electrons
    - Redox reactions
    - Displacement reactions
    - Ionic equations
    - Half equations
    This video is suitable for:
    - Higher tier only
    - All exam boards
    - Triple and combined science

Komentáře • 234

  • @Cognitoedu
    @Cognitoedu  Před 2 lety +59

    If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
    - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
    - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
    - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
    - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
    - A comprehensive bank of past exam papers, organised both by year, and also by topic.
    Amadeus & Tom

  • @janashehab8029
    @janashehab8029 Před 2 lety +490

    in 4 minutes this man explains everything that a teacher would explain in a week

  • @ozair6171
    @ozair6171 Před 3 lety +376

    I swear this channel is the only thing keeping me from failing rn, thank you so much i wish you the greatest luck to ur channel

  • @T_Y_R_Insights
    @T_Y_R_Insights Před 5 měsíci +20

    At the end of the day its just you and cognito

  • @henryhsil8630
    @henryhsil8630 Před 3 lety +153

    Love these lessons specially coloured representation....and pure explanation😍 my covid19 🏫school

    • @starbuckslover5045
      @starbuckslover5045 Před rokem +3

      100% Agree! Since I came to high school, its been AGES since I saw COLOURSSS!! I was FREAKING OUT about it the other day and my sister was so confused lol

    • @hibaamir5654
      @hibaamir5654 Před rokem

      @@starbuckslover5045 😅

  • @mihika2055
    @mihika2055 Před 3 lety +32

    THIS IS ABSOLUTLEY BRILLIANT! YOU EXPLAINED THIS TO ME IN LESS THAN 5 MINUTES....AND MY TEACHER COULDNT GET AROUND IT FOR 3 WHOLE WEEKS!..THIS IS AMAZING

  • @Hana-fj4dj
    @Hana-fj4dj Před 3 lety +33

    as a student who did not have chemistry in secondary school these videos are saving my life - thank you!!

  • @adamfaith9036
    @adamfaith9036 Před 5 lety +99

    from all the other channels, you sir have broken the topic down into some clear and simple stuff. many thanks dear human. many thanks.

  • @pepo_8842
    @pepo_8842 Před 19 dny +3

    in 38 seconds you could explain what I did not understand for a whole afternoon. Thanks.

  • @Cinderella-ov4cl
    @Cinderella-ov4cl Před 7 měsíci +7

    I love the way he explains, he always makes sure to make it simple and straight forward

  • @aminaabubakar9450
    @aminaabubakar9450 Před 3 lety +10

    I had faced lots of confusion on this topic but your explanation made it very clear for me . Special thanks

  • @happyaks2011
    @happyaks2011 Před 11 měsíci +5

    one of the best, sorry - THE best educational video i have ever seen and with the most calming voice ever :) thank you to the person who did this !

  • @pushpitakarmaker3633
    @pushpitakarmaker3633 Před rokem +2

    Thank you so much! This helped a lot! This video literally explained the entire chapter of 32 pages on redox reaction within 5 minutes! And I just learnt that it's nothing complicated. Thanks a lot again.

  • @shinystar4357
    @shinystar4357 Před 2 lety +2

    Thankyou so much guys, I didn't get this at school today and then I watched this video and it really helped! Understand it now! Appreciate all ur hard work!

  • @alvynryansonzhuo2663
    @alvynryansonzhuo2663 Před 3 měsíci +4

    For real, as a student who fails Chemistry, because I can't understand what on hell's name my teacher's explaining about, this saves my future.

  • @durjam3734
    @durjam3734 Před 5 lety +44

    These videos are pure quality, keep it up!

  • @LifeWisdomInsights
    @LifeWisdomInsights Před 3 lety +114

    If I pass IGCSE chemistry all credits goes to you ☺️

  • @aguyisgud
    @aguyisgud Před rokem +2

    In class, my science teacher had put on a cognito video and i got so interested and wrote the name down in class, after that, these videos have rlly been helping me understand science more and more and I've been getting perfect marks in science quizzes, so i rlly thank u a lot and i hope that ur channel gets up to 1M subscribers thanks to how helpful u r

  • @casinovathedon8924
    @casinovathedon8924 Před 4 lety +10

    Thank so much, i now understand how to write out half equations and ionic equations

  • @ashlove3247
    @ashlove3247 Před 5 lety +5

    That was very helpful..Thank you very much...WELL EXPLAINED.....good job!..

  • @dominatethewar3939
    @dominatethewar3939 Před 3 lety +10

    All these people thanking him for a good video and Im still sitting here hella confused 😂

  • @fahadchowdhury7807
    @fahadchowdhury7807 Před rokem

    Wow, the teaching method of this channel is awesome...just superb👌👌

  • @lushis2804
    @lushis2804 Před 2 lety +11

    All fun and games until...
    You have to finish equations yourself
    You have to consider pH
    Ions no longer make sense (like in CaOCl2)
    You start creating stuff from nowhere

  • @sammytott8554
    @sammytott8554 Před 4 lety +3

    It is a good learning video which motivate some where he/she get more knowledge

  • @adamfaith9036
    @adamfaith9036 Před 5 lety +28

    liked and subbed becuase this was amazing:)

  • @Emzie_Vlogs
    @Emzie_Vlogs Před 3 měsíci

    THANK YOU SO MUCH I GENUINELY NEVER THOUGHT I WOULD UNDERSTAND THIS LESSON

  • @abcdefg-hv2ks
    @abcdefg-hv2ks Před 3 lety +1

    Thank you so much, i would've been a goner without your videos!

  • @angelicac.pacheco5551
    @angelicac.pacheco5551 Před 4 lety +3

    Best explanation! Thank you!!!

  • @xentox5016
    @xentox5016 Před rokem +2

    clean! exactly what i was looking for, thanks!

  • @imbisatfajjar
    @imbisatfajjar Před 4 měsíci +1

    I swear I can understand better by watching this instead of my teacher explaining ❤❤ thanks so much this very good explanation ❤❤

  • @ctrackmiddle3183
    @ctrackmiddle3183 Před rokem

    Easy and enjoyable to understand by the way u teach. Excellent

  • @Abdisamedowil
    @Abdisamedowil Před rokem

    This video I’m watching after 3 years and i understand more and more Alhamdulilah ❤❤❤❤

  • @Urmum-tn6bx
    @Urmum-tn6bx Před rokem

    U literally saved me from so much stress I appreciate u so much man

  • @the81kid
    @the81kid Před rokem

    This was very clear and helpful. Many thanks!

  • @nollynnkomo1819
    @nollynnkomo1819 Před rokem

    Kkkkk I'm now 39 years old been in lov wth chemistry from school days your video has made e finally understand the reduction and oxidation thank you so very much now I want to understand carbon or organic chemistry

  • @invadarbp8394
    @invadarbp8394 Před 2 lety +1

    If i pass A-levels all thanks to you and your videos
    Only regret why dint i find your videos at GCSE

  • @dylanminikula4758
    @dylanminikula4758 Před 3 lety

    Very good explanation. Thanks

  • @mohamedhajith214
    @mohamedhajith214 Před 2 lety

    thanks a lot. my chemistry teacher cant even teach properly so im watching all you videos on c4 because i have a test tomorrow

  • @johnybarr8962
    @johnybarr8962 Před 3 lety

    great video and very easy to understand

  • @imbisatfajjar
    @imbisatfajjar Před 5 měsíci

    Very nice explaination thanks i always watch your vedios 😊❤❤ love from Pakistan

  • @Padmalathagudivada123
    @Padmalathagudivada123 Před 4 lety +1

    Tq so much it helped me.Keep it up

  • @GoodChemistry
    @GoodChemistry Před rokem

    Really useful, thanks for this.

  • @charlotteharrison6234

    Thank you so much for this video!!

  • @johnsonshuaibu99
    @johnsonshuaibu99 Před 3 lety

    This is an amazing video...tysm

  • @bluauber409
    @bluauber409 Před 2 lety +2

    going to face final tests in a week, this helped a lot in revising past chapters. thanks guy(s)

    • @Skyphide
      @Skyphide Před rokem

      Practice igcse past papers there are books of that

  • @snypehype7944
    @snypehype7944 Před 3 měsíci

    Helped me more than my teacher bro , I have a test tomorrow thanks

  • @marvinvalentin8960
    @marvinvalentin8960 Před 2 lety +1

    Its a great tutorial video. Thanks to this. Can you also prepare a lecture that describes Direct Interspecies Electron Transfer (DIET).

  • @user-op4tp8cq5s
    @user-op4tp8cq5s Před 4 dny

    This is awesome 💯😎

  • @elainakhan
    @elainakhan Před rokem

    me, in cbse. already in class 11 with my boards over like 2 months ago. Honestly the syllabus is kinda the same as our grade 10. anyways, good luck to all the igcse students i’m sure y’all will do great! :)

  • @AbdullahKhan15
    @AbdullahKhan15 Před 3 lety +2

    Are you able to make videos for the required practicals.
    Thanks

  • @million-xt3wv
    @million-xt3wv Před 2 lety

    Amazing work

  • @hibaamir5654
    @hibaamir5654 Před rokem

    Thank you so much i mean this 4 min video is way more better than reading a chapter of 20 to 30 pgs
    Thank you so much
    Love from pakistan

  • @nusaiba416
    @nusaiba416 Před 2 lety

    thankyouu for saving my exams :))

  • @aponsu4664
    @aponsu4664 Před 2 lety +1

    Good
    Every thing understood

  • @adhamhazemhanihassaneliska7136

    Thank you for creating these videos to help us. I'm really grateful.

    • @Cognitoedu
      @Cognitoedu  Před 3 lety

      and we're really grateful for your support, thanks Telesteria 😊

    • @DoMoreNew
      @DoMoreNew Před rokem

      wait so what's your name

  • @pakizahrubab2719
    @pakizahrubab2719 Před rokem +2

    Your videos do really help me alot Thank u so much 😃

  • @MFaaz-pe9rs
    @MFaaz-pe9rs Před 2 lety +1

    it was very helpful. Thanks a lot man! Appreciate it!

  • @maplekong7790
    @maplekong7790 Před 2 lety +1

    This channel deserves a few million subscribers- it has by far the best videos for any GCSE science and math topics :). A channel that talks about ant queen names and rhino beetles has more subscribers than this. I hereby announce that CZcams is broken.

    • @Cognitoedu
      @Cognitoedu  Před 2 lety +1

      Aw thanks Maple we really appreciate it 🤩

  • @Lifelymotive
    @Lifelymotive Před 2 lety +1

    Perfect, on my head!!!

  • @eaux383
    @eaux383 Před 3 lety

    thank you for this excellent educational video that you have provided!!

    • @Cognitoedu
      @Cognitoedu  Před 3 lety

      Thanks Eaux, glad you enjoyed it!

  • @prakashrajput9818
    @prakashrajput9818 Před 2 lety +3

    One mistake is that the electrons in the half equations for oxidation and reduction should be swapped around. For oxidation the electrons should be on the right, vice versa. Great Video overall tho!

  • @hyunseungchloriskim894
    @hyunseungchloriskim894 Před 4 měsíci

    You are my lifesaver

  • @adminss728
    @adminss728 Před 3 lety

    Last-minute revision before the unit test. Chemistry is not my strongest point always got 4's hopefully this time round will get 6 and above. Physics and Biology are very easy, mathematics is my strongest.
    Thanks to you again!

  • @abdulqaiyumhamid6624
    @abdulqaiyumhamid6624 Před 3 lety

    Nice, what software did you used to do this kind of video.
    I want to do for English Language student

  • @Evaritto
    @Evaritto Před 3 lety

    I will pass thanks to this channel

  • @hindbakkali7373
    @hindbakkali7373 Před 2 lety

    thanks a lot !!!! really helpful great explanation and animation

  • @sarahmulia7854
    @sarahmulia7854 Před 2 lety +1

    Very good explanation&thank you

  • @mwiyamichael
    @mwiyamichael Před 3 lety +2

    Isn't calcium sulphate going to form a precipitate? Does it make sense to split it into its ions if it's a solid? It isn't in aqueous state 🤔

  • @ompatel4630
    @ompatel4630 Před 5 lety +2

    fantastic video cheers bud

    • @Cognitoedu
      @Cognitoedu  Před 5 lety +1

      Our pleasure! Really happy to hear it was helpful :)

  • @Lagoster
    @Lagoster Před 4 lety +6

    Very informative :)

    • @Cognitoedu
      @Cognitoedu  Před 4 lety +3

      Hey thanks for the support! Really appreciate the comment and good luck for all your work 🥳

  • @ahmadqasim4773
    @ahmadqasim4773 Před rokem +1

    I was struggling so much on this topic.....until I found this video

  • @abdullahilyas4354
    @abdullahilyas4354 Před 4 lety +2

    it really helped. Thanks

    • @Cognitoedu
      @Cognitoedu  Před 4 lety +1

      You're really welcome mate - good luck with all your work!

  • @Pizza.64
    @Pizza.64 Před rokem +2

    Great explanation and Thank you

  • @shahedidrees9913
    @shahedidrees9913 Před 2 lety

    thx so much this video help me alot
    one think , please can u explain the indirect redox reaction ...

  • @louisadu-poku3863
    @louisadu-poku3863 Před 4 lety +1

    Thank you sooo much

  • @maevahanisi1347
    @maevahanisi1347 Před 2 lety

    Thanks so much this really helped ❤

  • @d3l436
    @d3l436 Před rokem +1

    Thanks a lot!!!!!

  • @BenSmith-ox4ur
    @BenSmith-ox4ur Před 5 lety +1

    Great vid man

    • @Cognitoedu
      @Cognitoedu  Před 5 lety

      Thanks Ben, glad to hear you think so! :D

  • @chellyreverse2235
    @chellyreverse2235 Před 4 lety +2

    Thanks mate

  • @KB-lv6sd
    @KB-lv6sd Před 4 lety +1

    Bloody helpful mate

  • @ShangMaoo
    @ShangMaoo Před 3 lety +2

    I'm confused how my teacher made such a simple concept to some sort of unsolvable equation.. I can't handle her classes 😬 she makes everything seem way harder..

  • @saraswathit647
    @saraswathit647 Před 4 lety +2

    Super class buddy

    • @Cognitoedu
      @Cognitoedu  Před 4 lety

      Thank you!! Really glad you liked it :))

  • @quratulainazharquratulain951

    I love ur videos🎀💓💓💓🎀

  • @michaelsrowland
    @michaelsrowland Před 4 dny

    Do redox reaction only take place in ions? Not covalent bonds ?

  • @user-ep8xo1od9o
    @user-ep8xo1od9o Před 5 lety +4

    thank you!!

    • @Cognitoedu
      @Cognitoedu  Před 5 lety +2

      You’re very welcome - good luck!

  • @nadiabasit815
    @nadiabasit815 Před rokem

    Man's a legend

  • @bmsbeauty9408
    @bmsbeauty9408 Před rokem

    thank you very much

  • @smloganathan4678
    @smloganathan4678 Před 2 lety

    Very useful

  • @big_guy6507
    @big_guy6507 Před rokem

    So... when you write (fe + 2e-), do you have to include the negative sign on the (e) and if so, does the sign ever change to positive?

    • @ihi4278
      @ihi4278 Před rokem +1

      No bcz an electron it's always negatively charged

  • @na.1221
    @na.1221 Před rokem +1

    Thanks teacher

  • @sumanpaul9512
    @sumanpaul9512 Před 3 lety +1

    Thank you

  • @saeetilwankar356
    @saeetilwankar356 Před 2 měsíci

    Thanks!

  • @devonaoki3417
    @devonaoki3417 Před 2 měsíci

    Thankyou❤

  • @nerd_yboi8771
    @nerd_yboi8771 Před 4 lety +1

    Thank you very much for these amazing videos!
    (This will be a fine addition to my collection xd)

    • @Cognitoedu
      @Cognitoedu  Před 4 lety +1

      Haha thank you! Super happy you find them useful - and wishing you good luck for all your work!

    • @nerd_yboi8771
      @nerd_yboi8771 Před 4 lety

      @@Cognitoedu Good luck on making new useful videos as well! :)

  • @raaafn874
    @raaafn874 Před 2 lety

    I dont understand, 1:03 If it was too lose, woudn't it be -2? please explain as I am confused. This channel has helped me alot and I use your website and have subscribed

    • @mahnoorwaseem6316
      @mahnoorwaseem6316 Před 2 lety

      In chemistry it is the opposite. Since electrons are negatively charged when an atom loses the electrons the atom becomes positive, that’s why there will be written a 2+ symbol outside the brackets. For example If magnesium loses its two outer electrons it will become +2. And if magnesium gains it’s 6 electrons to complete its outer shell it will become -6

  • @khushpratikshah1860
    @khushpratikshah1860 Před 2 lety

    what do u use to make ur vids?

  • @luyandokacha5580
    @luyandokacha5580 Před 3 lety

    Helpful

  • @jisology_425
    @jisology_425 Před rokem

    THANK YOUUU

  • @shahindasamih2459
    @shahindasamih2459 Před 3 lety

    Perfection

  • @adiasadeqee9454
    @adiasadeqee9454 Před 3 lety

    Why did Iron(Fe) lose its 2+ charge? Is it because it got displaced, if so does it occur with all equations?

    • @maplekong7790
      @maplekong7790 Před 2 lety

      Hi Adia, I think iron did lose it's charge because of displacement. And yes, if a metal is displaced it loses its charge. Hope this helps!