In this video, we look at the structure of the aromatic compound benzene. First we explore Kekulé's proposed structure and the four lines of evidence that this structure is incorrect. These are the lack of reactivity with bromine, the bond lengths, the enthalpy change of hydrogenation and the lack of isomers. We then look at the delocalised model for the structure of benzene which scientists now consider to be correct.
Hi sir. I am currently in Y12 and i am wondering do all your vidoes cover all of the A-Level Chemistry specifcation, so i can just start making flashcards from september and learn them for Y13.
@RayhanKhan-o6kx Says:
Please finish the rest of y13 chemistry
@Idekwht Says:
is this all the year 13 content or is it not finished?
@Veeswife Says:
Hi sir, I haven't actually got to A level yet and I'm still in Y9 but I found this really interesting and it helped me understand benzene better, thanks! :)
@Maddy-l3g Says:
Hi sir, I love your videos and used them a ton at gcse, the way you explain took my from 5,6,7 to 8,8,9 in science. I was wondering if you were going to finish the content for alevel chemistry. It'd be enormously appreciated, especially I know it's a lot of time for you but so many students would be so grateful as your videos are really one of a kind!!!
@yasminh Says:
TYSM GOAT
@rabiamultan9481 Says:
sir have you covered every topic in the A level spec?
@yasminh Says:
OMG YES THANK YOU WE JUST FINISHED THIS TOPIC AT SCHOOL SO THIS IS PERFECT TIMING FOR REVISION THANK YOU SIR
@goosebumper714 Says:
Hi Shaun,
firstly thank you so much for your dedication in helping the population gain access to such digestible and rich education. I'm currently in my final year of my Alevels and have been using your videos to guide myself since my Gcses. They got me all 9s and that was during the pandemic so it goes to show how priceless your videos are.
There is no need for me to go into much detail but during my As level I had a health crisis which left me unable to leave my bed or stay awake for more than a few hours for months. Now my health has stabilised but there is much work to be done.
I would just like to let you know how endlessly helpful it would be if you were to manage to cover the majority of the Chemistry , Biology or even Physics Alevel content this year, and to thank you for all you have done already on behalf of a generation.
Warm regards, a student.
@ВолодимирНемерцалов Says:
Thank you very much for your nice and amazing work.
@lovemorechiwuswa Says:
Can we have A level physics videos , please
@commentgames9222 Says:
Ive just started y12 so by the end of y12 could u have completed the entire a level and we really do appreciate what your doing
@tayyebaomair Says:
Hi sir I just started year 12 I’m doing aqa spec so should I follow all the vids in the playlist or only the ones that explicitly say aqa on it btw I used ur vids for GCSEs and I got a 9 in bio and 8s in chem and physics so thank you so much
@fivestarmichelin0809 Says:
Thank you so much for all your hard work!! I appreciate it
@astonishmentlive1086 Says:
Hi sir, when do you think you will finish your A-Level biology videos? (as I intend on using them to revise for A-Level biology)
@charliewilliams5672 Says:
i'm wondering if you might do a level physics in the future or is that too much - thanks for all the help your amazing
@rigjuice734 Says:
hi how are you
@thehemidemisemihemidemisem3339 Says:
This is crazy compared to what i'm doing in gcse
@rustrus2018 Says:
I've just went through a lot of unsubscribing from channels to clean up my youtube feed. Yet I cant get myself to unsubscribe from you despite finishing A levels 4 years ago.
I hope everyone finds your videos as useful as I did!
@Remyxoxo Says:
Thank you <3
@childofchrist101 Says:
Your videos are so goooodd. I use them everyday
@EsterAngelsSub Says:
I woukd like to thank you for all of your help during my o levels and A levels. Thanks to you I am studying dentistry
@freezeburn1 Says:
To Mr Donnelly,
The prospects of high GCSE and A Level grades are sought after by many, though achieved in practice by few. Thanks to your teaching, I secured top grades in both to earn my place in UoB. Your teaching was extremely time efficient and effective, and I have you to credit as a fantastic teacher over the years helping my develop some rudimentary knowledge for the future. I sincerely extend my ineffable gratitude towards you and pray you continue to deliver education of the ultimate order to future years to come, and to live life with true satisfaction, happiness, and contentment as well. You are appreciated by multitudes.
@lemonlime8949 Says:
Hello pls make videos on carbonyls and carboxylic acids pls for yr 13
@ChillCheddarMan Says:
Howdy partner, can you there make a quick old video on stem cells yeehaw 🤠
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