GCSE Chemistry - Oxidation and Reduction - Redox Reactions #39 (Higher Tier)
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- 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
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:
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- A comprehensive bank of past exam papers, organised both by year, and also by topic.
Amadeus & Tom
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You're very welcome! Glad they're coming in useful :)
9
in 38 seconds you could explain what I did not understand for a whole afternoon. Thanks.
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Us
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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
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going to face final tests in a week, this helped a lot in revising past chapters. thanks guy(s)
Practice igcse past papers there are books of that
Helped me more than my teacher bro , I have a test tomorrow thanks
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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! :)
Are you able to make videos for the required practicals.
Thanks
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Good
Every thing understood
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Perfect, on my head!!!
thank you for this excellent educational video that you have provided!!
Thanks Eaux, glad you enjoyed it!
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!
You are my lifesaver
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!
Good luck Saad 🤞
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Glad you enjoyed it! 😊
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Glad you liked it! 👍
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 🤔
fantastic video cheers bud
Our pleasure! Really happy to hear it was helpful :)
Very informative :)
Hey thanks for the support! Really appreciate the comment and good luck for all your work 🥳
I was struggling so much on this topic.....until I found this video
it really helped. Thanks
You're really welcome mate - good luck with all your work!
Great explanation and Thank you
thx so much this video help me alot
one think , please can u explain the indirect redox reaction ...
Thank you sooo much
Thanks so much this really helped ❤
Glad it helped! 🙌
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Great vid man
Thanks Ben, glad to hear you think so! :D
Thanks mate
Bloody helpful mate
Cheers KB - good to hear it :)
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..
Super class buddy
Thank you!! Really glad you liked it :))
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Do redox reaction only take place in ions? Not covalent bonds ?
thank you!!
You’re very welcome - good luck!
Man's a legend
thank you very much
Very useful
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?
No bcz an electron it's always negatively charged
Thanks teacher
Thank you
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Thankyou❤
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Haha thank you! Super happy you find them useful - and wishing you good luck for all your work!
@@Cognitoedu Good luck on making new useful videos as well! :)
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
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
what do u use to make ur vids?
Helpful
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Perfection
Why did Iron(Fe) lose its 2+ charge? Is it because it got displaced, if so does it occur with all equations?
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!