GCSE Chemistry - Addition Reactions of Alkenes #55

This video covers:
- The idea that the carbon-carbon double bond can break, which allows the carbons to bond to new atoms
- How alkenes react with hydrogen to form alkanes
- How alkenes react with water to form alcohols
- How alkenes react with halogens
- The bromine test

Exam board specific info:
AQA - Separate/triple science only
IGCSE Edexcel - Everything is relevant to your course!
Edexcel - Separate/triple science only
OCR 21st Century - Separate/triple science only
OCR Gateway - Separate/triple science only

Maths Playlist:

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GCSE Physics Playlist:

[master]

Bro you need at least a million subscribers for this content

[sammh.]

This is hands down, the best channel for IGCSE!!!! Let's all take a moment to appreciate the animations which makes it a hell lot easier for us to visualize. Thanks Cognito!!!!

[marykateanecito]

Why is this underrated? This is helpful. It may be short but it is concise! Good for having a brief background of chemistry subjects!

[carolinarombaldi]

this was literally the only thing that was able to actually teach me addition reactions

[realtigeronline]

You literally can't get a better explanation for this. Thanks!

[ficti_an]

A ginormous thank you to all the people involved in the making of these videos, you are literally saving millions of students' scores everywhere, including my own lol. I've recommended this channel to my classmates and let's just say my chemistry teacher was finally pleased with the statistics this year :)

[Tplusclips]

couldn't understand this topic till months until yesterday when my friend referred this channel to me

[Cognitoedu]

- 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

[alieyad]

Bro u r literally indescribable … well done 👏🏻 👍🏻

[aaisharahman]

did this in class yesterday and I didn’t understand it one bit until this vid😁

[marionferra]

Fantastic videos. Your videos are the best educational ones I have found. Thank you.

[sophiaouchari]

just found your channel and wow! these are some well made videos!

[nadjagovedarica]

I have never loved a video at a firs view before. I love you so much thank youuu!!! Btw I have an exam in less than 9 hours and its 11pm so this is a life saver.💗💗💗

[m.gayathridevi]

this channel is saving my boards class 10
instantly subscribed

[aimenabbasi]

even though i am giving GCE it is still really very helpful. Literally covers up everything. BRAVO

[pomi]

You also forgot to talk about the reaction of addition of hydrogenhalide. which is adding a hydrogen halide to an alkene to form a haloalkene. for example: propene + hydrogen chloride ---> chloropropene. The hydrogen will bond to one carbon and chlorine to another one. we can change the chlorines location to make different izomers which are compounds having the same molecular formula but different structural formula. Like (1-chloropropene and 2-chloropropene). Also in some past paper questions for Chemistry IGCSE (0620) i found that they asked for the catalyst and conditions, so ill list them out.

Hydrogenation Reaction Conditions:
Catalyst: Nickel
Temperature: 150 degrees C

Hydration Reaction Conditions:
Catalyst: Phosphoric Acid - H3PO4
Temperature: 300 degrees C
Pressure: 60 A.T.M


Other than that great video. Keep up the good work!!

[caavery]

I have a test tomorrow, thank you for saving my life

[HeliosNation]

I am so shocked your videos are legendary! You will get more subs I am sure . Keep the amazing work Mate !
You are the best, FACTS !

[Strangeruser]

I have watched up to 12 YouTube videos to understand this topic, but this was the only beneficial one. Thank you very much 🤩🤩💕

[nadakhalil]

Hi the contents of the video are wonderful and i used this video for my students in grade 9.But i have a note, in our curriculum in Lebanon we have one more idea in addition reaction of Alkene which is the addition of hydrogenhalides its name is hydrohalogenation. So if you can make some changes in this video to add the last addition reaction (hydrohalogenation) then it will be perfect for my students.