Not sure if this is helpful to anyone but I somehow remember these steps better by remembering the net change of free radicals: initiation: net increase of free radicals propagation: no net change of free radicals termination: net decrease of free radicals
Hello sir, I really appreciate what you do and keep going please. One question tho, You know how you said in the end that I don't need to use curly arrows, but my teachers tell me to be very careful about curly arrows as i might get mark down if the arrows are not right. And I see in Mark schemes they are very strict about arrows, Is it because this video is old and they changed the rule or is it still the same? Thank you sir, would really appreciate your reply. Stay Blessed.
What I say is that you don't need to use curly HALF-arrows to represent a single electron in free-radical reactions. You do need to use FULL curly arrows to represent the movement of a pair of electrons in other reaction mechanisms.
3:37 The bromine molecule reacts here with a radical but then he says at 4:18 it won't take part in the reaction as a bromine molecule? Does it mean it can still happen just only if there are free radicals?
Halogens come in pairs as they have a single electron on their outer shell, hence in order to be stable they come in pairs to have full outer shells. So yes, alkanes either react with Cl2 or Br2.
The clarification of whether or not to use curly half arrows was goldennn
I have a test on this tomorrow, perfect timing, thank you!
😂😂
I have a test on this today.
your videos got me through my gcses and now i'm still using them 3 weeks before my a levels thank you
My brain cells are fried! Your videos are very helpful- thank you very much, Sir.
Your welcome
I miss seeing Shauns' face 😢😢
love the video though^^
Don't worry, his new videos feature his face!
His name is shaun?
@@shutup-u5z6j shawn the goat 🐐 🗣🔥🔥🔥🔥
thanks for uploading A-level organic videos in the future could you also do inorganic after finishing orgainc
Yes, I'll be covering that. I also do Biology A level.
You are so good at chemistry please keep helping us😢❤
Not sure if this is helpful to anyone but I somehow remember these steps better by remembering the net change of free radicals:
initiation: net increase of free radicals
propagation: no net change of free radicals
termination: net decrease of free radicals
Your little teacher guy is so cute. Thanks for the video :^)
plz make a vid on Electrophilic Addition of Alkenes, i have an exam after 2 days
Ok
Wait u started uploading again for the new syllabus yASSSSSSSSSS
Why can't we use free radicals in any G7 element for this reaction (e.g. the Iodine free radical)?
He says we can at the start but he used bromine as an example
We are required to draw curly arrows for OCR
That's correct but you not required to draw half arrows.
@@Freesciencelessons*You're
Can you PLEASE start making A Level Physics videos!
Hi sir, can I ask which exam board this is based off or are these videos just general chemistry?
These videos cover the content for AQA, OCR and Edexcel. If something is specific to one of the exam boards, then I flag that up in the video.
@@Freesciencelessons Are CIE's (CAIES) included as well?
Don’t think so
Coupd u change the background to blue again😢😢
thank you. I appreciate it.
Hello sir, I really appreciate what you do and keep going please. One question tho, You know how you said in the end that I don't need to use curly arrows, but my teachers tell me to be very careful about curly arrows as i might get mark down if the arrows are not right. And I see in Mark schemes they are very strict about arrows, Is it because this video is old and they changed the rule or is it still the same? Thank you sir, would really appreciate your reply. Stay Blessed.
What I say is that you don't need to use curly HALF-arrows to represent a single electron in free-radical reactions. You do need to use FULL curly arrows to represent the movement of a pair of electrons in other reaction mechanisms.
@@Freesciencelessons oh ok sir! Thank you very much, that makes sense
we are required to draw curly arrows and half arrows in the edexcel spec
Page 18 of the spec says that you're not.
Like really thank you
شكرآ
3:37 The bromine molecule reacts here with a radical but then he says at 4:18 it won't take part in the reaction as a bromine molecule? Does it mean it can still happen just only if there are free radicals?
The bromine molecule will not react via free radical substitution unless it is converted to radicals (ie initiation).
Chemistry exam in 3 days and i dont understand any of this‼🙆🏾♂️
how’d u score 😂
I'll explain, in 8 years time
thank you very much
Great explanation!
Hi sir your website doesnt work
do you know why?
Could you say "Hi" to my friend, Sharan K from 4MCR
Where do you get the work books?
im not doing A level but im here
your website for the workbooks has crashed
We're having a server issue due to high demand. It will be resolved very soon. Sorry about that.
does this reaction with alkanes only happen with a diatomic halogen?
Halogens come in pairs as they have a single electron on their outer shell, hence in order to be stable they come in pairs to have full outer shells. So yes, alkanes either react with Cl2 or Br2.
did his suit change color?!
Damn I still don’t get it lol
Good luck you can do this