I am so so ill and have my chemistry exam tomorrow These videos are helping me so much because it hurts to even move Thank you so much I am so so grateful
Always interesting when I’m watching this video to found out that my teacher hasn’t even taught it to us and am having to teach this to myself for my GCSE in a few weeks? 😂 I mean did they just expect us to just magically know it? Wouldn’t have even known it existed without you so thanks a bunch! (Edit) Slightly worrying when it’s literally their job....
Stranger Things literally same, I’ve got his videos and then using the spec too and sometimes the revision guide if I don’t understand. Now I need to focus on practise questions cause they’re really important 😂
as the number of 'n' increases,there's an extra carbon atom and 2 hydrogen atoms. for eg. ethene to propene, you add 1 more carbon atom and 2 more hydrogen atoms
This is really confusing... I have the AQA GCSE 9-1 textbook and it says for the reaction shown in the video that finely-divided nickel is used at a temperature of 300 degrees celsius. So is the correct figure 60,150 or 300?
That's correct but I'm comparing two different alkenes within the alkene homologous series eg ethene and propene. Propene has two extra hydrogen atoms (and an extra carbon atom) compared to ethene.
I’m currently taking foundation level and I don’t know wether these triple science videos comply to me, can someone respond to this comment so I know which ones I should revise from.
No because the central carbon has five bonds. There should only be one hydrogen on the central carbon. The third carbon only has three bonds, so it needs another hydrogen (carbon has to have four bonds).
rawand althrefe because alkenes have double bonds, one of those bonds is broken and is then attached to the hydrogen so now the alkene has no double bonds because it was broken to join the hydrogen
its coz the carbon atom has to have 4 bonds on it so it can bond to hydrogen, when hydrogen is added, instead of the carbon double bond and turns into an alkane which is saturated
you explained in 3 minutes what my teacher couldnt explain in an hour
Legit just came into year 11 and got my exams starting on the 11th may, you my friend are going to carry me
How’d it go?
How’d it go?
How'd it go?
How'd it go?
How’d it go?
all these years i never had a clue about complete and incomplete combustion, one day before the exam i finally find out, thank you shaun :)x
I am so so ill and have my chemistry exam tomorrow
These videos are helping me so much because it hurts to even move
Thank you so much I am so so grateful
good luck bruh
Did you do well?
@@greyweather7768 lmaoo
@@greyweather7768 what did you get
@@MWK-ph8pl what did u get
Trust me some people should have never become teachers AND MY CHEMISTRY TEACHER IS ONE OF THEM
Always interesting when I’m watching this video to found out that my teacher hasn’t even taught it to us and am having to teach this to myself for my GCSE in a few weeks? 😂 I mean did they just expect us to just magically know it? Wouldn’t have even known it existed without you so thanks a bunch!
(Edit) Slightly worrying when it’s literally their job....
Sophie Jane bruuh iam panicking too 😭😭😭
iam literally just going through his vids for revision wbu? 😭
i'm just binge watching all shaun's videos cause my teacher is useless :)
Stranger Things literally same, I’ve got his videos and then using the spec too and sometimes the revision guide if I don’t understand. Now I need to focus on practise questions cause they’re really important 😂
Ezeto meee
I've got my Chemistry 2 exam tomorrow and I honestly cannot thank you enough for all of your videos, they have helped me so much. Thank you!
Hi
You are a absolute unit
I have my exams in like two months and only now thanks to your videos am I understanding Science, tysm
if any of organic chemistry is in the exam i will cry
Unfortunately there is a 100% chance it will be on there :(
same :(((
jokeman
ofc it will
I do a piano improvisation session of our boi Shaun's beautiful into tune every evening
Unlike other people I will return to this comment section with my gcse result.
Lets hear it
I missed a weeks or two's worth of lecture, and you just explained all in a series of videos!
Excellent video - thank you!
Have my chemistry mock tommorow. Revising metallic bonding as we speak..... :(((
Hi there Jimin
@@maryamismail9490 LMAO
you are a Kpop fan as well!
someone give my guy a nobel prize and fire all chemistry teachers
gcse paper 2 exam in less than an hour so i’m here😁🕺
How did it go?
Great videos as always!! ^^
Aahhh ur channel n videos r such life savers that I can't emphasise enough!!
my exam is in just over two hours, this is the only revision I've done. I'll let yall know how it goes
How did it go?
@@imkxtie9892 hes still doing his exam
@@randomacc77777 🤣
I didn't understand what was meant by 'extra' carbon atom and hydrogen atoms
as the number of 'n' increases,there's an extra carbon atom and 2 hydrogen atoms. for eg. ethene to propene, you add 1 more carbon atom and 2 more hydrogen atoms
@@niharikaraghavendra9452 omds you are a godsend thank youuu
What do you mean by triple chemistry students?
Students who are studying all three GCSEs rather than Combined Science (in other words Double).
people who took triple science.
like me boy boy boy boy boy boy boy boy boy boy
Freesciencelessons I’m doing paper 2 chemistry tomorrow but my other exams were combined hmmmm
@@JOE-hu9qk What's your point?
on the alkenes video for drawing the displayed formula is it sufficient to just put Hydrogen atoms on top of all the carbon atoms, none on the side?
This is really confusing... I have the AQA GCSE 9-1 textbook and it says for the reaction shown in the video that finely-divided nickel is used at a temperature of 300 degrees celsius. So is the correct figure 60,150 or 300?
There is no one specific temperature. All of those temperatures will work. It also depends on the alkene that you are reacting with hydrogen.
I cant find any links for the workbook above. above where?
The i in the circle above
I know it's a bit late now 😂😂😂
is it possible to react alkenes in complete combustion or not?
If you are here currently cause you got mocks then heyyy😂
Hi sir, what exam board did you mainly teach in your 20-year experience?
I don't know, but I suspect AQA, seeing as these videos are based on the AQA syllabus
@@beaquin3173 its mostly AQA and edexcel but its a mix
so is there only 1 double bond in alkenes?
No some alkenes have several double bonds. However, an alkene has to have at least one double bond.
i thought alkenes had 2 less hydrogen atoms not 2 extra?
That's correct but I'm comparing two different alkenes within the alkene homologous series eg ethene and propene. Propene has two extra hydrogen atoms (and an extra carbon atom) compared to ethene.
do we have to know the functional group for alkanes
Alkanes do not have a functional group.
Excellent
Do we need to know the reaction temperatures and catalyst materials for every reaction?
I’m currently taking foundation level and I don’t know wether these triple science videos comply to me, can someone respond to this comment so I know which ones I should revise from.
The ones when he says triple science videos only u don't need to watch them other than that watch the rest
I don’t think you need to learn it x
Hope ur revision goes well :)
This isn't triple only, we did this at school
It is Triple on the AQA spec.
Don't question Shaun, he's always right
@@fireemperorzuko8756 💀
At 2:24 why do you increase the temperature to 150C only?
Any higher would be a waste of energy.
@@Freesciencelessons thanks
do we need to know about hydrogenation?
Can alkenes have more than one double bond? Do we have to know about them?
Yes they can but you don't need to specifically know about them.
What does it mean by 'Each molecule... has an extra carbon atom and two extra hydrogen atoms.'?
Going through a homologous series (eg alkanes), each molecule has an extra carbon atom and two hydrogens. Eg methane is CH4 and ethane is C2H6.
can you bond the hydrogen with the carbon even though there is a double bond? like this : h h h
' ' '
c=c-c
' ' '
h h h
No because the central carbon has five bonds. There should only be one hydrogen on the central carbon. The third carbon only has three bonds, so it needs another hydrogen (carbon has to have four bonds).
got my mock tommorow if i dont pass i get grounded good luck to me
I’m done for
Thank uuuuu this helped soo much aahhh
This is great!
is this paper one or two?
This is paper 2.
very nice thanks
great
CHEM TRMW ANYONE
I don't understand how adding hydrogen to the alkene converts it and makes it a single bonded alkane.
rawand althrefe because alkenes have double bonds, one of those bonds is broken and is then attached to the hydrogen so now the alkene has no double bonds because it was broken to join the hydrogen
its coz the carbon atom has to have 4 bonds on it so it can bond to hydrogen, when hydrogen is added, instead of the carbon double bond and turns into an alkane which is saturated
The double bond is broken, so the hydrogen can then bond to it
i think
Good video sufficient if it would only
are you required to know the catalyst
You are required to know the conditions so I would learn the catalyst.
okay