Really appreciate what you do for a-level students. Please keep it up because I really love your videos 😊❤
@heardukey19 сағат бұрын
the goat is back
@AmilRegiКүн бұрын
really helpfull
@JOY_MYAAA2 күн бұрын
Great help! But kindly check the values for the first and fourth questions. I think there may be an error.
@user-se9kc6fo5t5 күн бұрын
can you post the answers for half equations practice?
@DrdeBruinsClassroom4 күн бұрын
Are the answers not all in it video?
@rositamohanty96647 күн бұрын
Shouldn't it be conjugate base [A-]/weak acid [HA]?
@Study_account16038 күн бұрын
Hi, if I learn EVEYRTHING in the GCSE QUANTITAVE CHEMISTRY playlist (that you made), will I be set for all questions from this topic? This is because I find it very hard to 'work it out', unless I know how to do it. BTW, I am predicted a 9 in GCSE CHEMISTRY (and in all the three sciences and maths), but it gets really confusing if you don't know what to do!
@OliverClarke-l1w10 күн бұрын
Got my results for science, got a 9-8 on combined Aqa, thank you for all the support from your videos, made me realise I could do better than just passing
@DrdeBruinsClassroom9 күн бұрын
Nice work!
@NJxD51919 күн бұрын
Thanks
@samuelajigboye709421 күн бұрын
U just saved my exam, thank you😊
@samikshasubramaniam5232Ай бұрын
Thankkk uuuu u really helped me so muchhh✨
@shinninglightministry7050Ай бұрын
Why are multiplying by 2?
@DrdeBruinsClassroomАй бұрын
Because that's the ratio that the molecules react with. Two moles of methane react with one mole of oxygen.
@benyaminkeivany3026Ай бұрын
I am stressed because I cannot remember if I used a Frixion pen or not.
@DrdeBruinsClassroomАй бұрын
I mean, this video pretty clearly shows that the frixion pen was fine so surely it should make you LESS stressed?
@benyaminkeivany3026Ай бұрын
@@DrdeBruinsClassroomI mean people have been saying they used it previously in their exams and all their work was erased.
@WillBetts-xg4yq2 ай бұрын
gas to solid is deposition, liquid to gas is sometimes vaporising
@DrdeBruinsClassroom2 ай бұрын
Weirdly AQA don't put deposition in the spec, and they always describe liquid to gas as boiling or evaporating, not vaporising
@d0gegaming6732 ай бұрын
What the sigma gyatt!!!
@idontknowwhattonamethis75h822 ай бұрын
Hey miss I did half my a level paper in blue pen, do you think I will get full credit for the stuff I wrote, I am kinda stressed about it
@DrdeBruinsClassroom2 ай бұрын
Nobody is going to intentionally not mark your work. The issue is that blue pen (especially light blue pen) doesn't scan so well so it makes it harder to make out what you've said (rather like having bad handwriting). If it's a decent navy biro, you'll still be fine
@stdysteph2 ай бұрын
Thank you!!
@user-hj4sy2md9b2 ай бұрын
good luck today!! i’m terrified haha
@jillian90982 ай бұрын
Could you make a detailed video on shapes of molecules? It’s missing from your bonding playlist 😔 I’d rly appreciate it!
@siraj68912 ай бұрын
Icl Qasim get a job
@sxftz13472 ай бұрын
free quasim
@adammasood70862 ай бұрын
what did Qasim do😭
@siraj68912 ай бұрын
Qasim lock in don’t look at comments
@sxftz13472 ай бұрын
💀
@adammasood70862 ай бұрын
can you tell us what grade Qasim gets in august ?
@Faran-nl4bc2 ай бұрын
@@adammasood7086i got you bro dw
@siraj68912 ай бұрын
Qasim pattern up
@siraj68912 ай бұрын
Qasim
@persis16832 ай бұрын
Could I instead of saying the alcohol will turn green say that the ketone remains orange
@JonathanBlack-gc1ch2 ай бұрын
ye
@edwardwilkinson43192 ай бұрын
yeah ill put in a good word for you with the man in the sky
@tim38982 ай бұрын
im pretty sure de bruin is the man in the sky
@lucennass2 ай бұрын
hiya, when (if you ever would) would you add ninhydrin?
@ella_mcgov20132 ай бұрын
You can spray it over at the end I believe
@afro117icarus52 ай бұрын
Yeah you can spray it to be able to see the spots around when UV is about to be shone
@Gob_1232 ай бұрын
Paper 1 and 2 went so bad I think I’ll be having to resit. Hopefully I can make it up a bit with paper 3
@Tsy1722 ай бұрын
ennit man exact same thing.. i might have to take Gap year and resit cuz paper 2 went really bad but hopefully I can bring it back tommorow. Biology went decent for me but its just Chem
@Gob_1232 ай бұрын
@@Tsy172 bio and chem went pretty bad but I’ll see what I end up getting and just resit if I have too.
@yousufrahman2 ай бұрын
nah have faith that you can clutch up and firm it
@Gob_1232 ай бұрын
@@yousufrahman I wish I could think like that but I highly doubt it b
@kash51662 ай бұрын
thanks for lowering grade boundaries ily
@syyahahhs63532 ай бұрын
could i reduce ketone back to a secondary alcohol and then do the acidified potassium dichromate test and since tertiary doesnt reduce it will be identified
@IA-wq4gj2 ай бұрын
Hi, how would i know whether to write this practical or practical 7A when asked the question as this question looks similar to practical 7A question as they both ask for order, so how would i know whether to describe continuous monitoring experiment or order via initial rate experiment when asked a similar question. please get back to me, Thank you very much.
@mohammedseedat86372 ай бұрын
If you got a gas In the reaction, your gonna use a gas syringe so it’s continous monitoring method, a lot of times in the question it will tell you whether it’s initial or continous if not look at whether there’s a gas in the equation
@aaliyah16702 ай бұрын
@@mohammedseedat8637 am i right in saying we can calc rate via intial method for continous monitoring too? as in calc the gradient at t=0 for each conc?
@ahmedmustafa77532 ай бұрын
do you not need to rinse the pipette with the acid and conical flask with water to remove contaminations?
@DrdeBruinsClassroom2 ай бұрын
I've never seen it in a mark scheme, probably because realistically you put your CF and pipettes through the dishwasher so they're fine but it's the burette that get poorly rinsed by hand that give you trouble
@ahmedmustafa77532 ай бұрын
@@DrdeBruinsClassroom thank you
@genjswrld2 ай бұрын
Hi Miss can you talk through some of the 6 markers that came up, I was really baffled by them.
@DrdeBruinsClassroom2 ай бұрын
Unfortunately not. The papers are meant to be secure until next May and I would rather avoid AQA shutting down my challenge for breaking that 😭
@hbanksy2 ай бұрын
Thanks so much for these videos, these will really help for the paper 3 :)
@DrdeBruinsClassroom2 ай бұрын
You're very welcome
@milliedodd31272 ай бұрын
could you not use sodium + squeky pop test for the tertiary alcohol???
@DrdeBruinsClassroom2 ай бұрын
Tertiary alcohols don't react with sodium
@omsharfmohamedali5502 ай бұрын
will u be doing this for paper 2
@Gob_1232 ай бұрын
If I just learn these steps will that be enough for me to do any questions. Like I can just work out what the gaps will be or can write these same steps for a different question along with drawing the apparatus.
@DrdeBruinsClassroom2 ай бұрын
There are other things you could be asked, but I'd say this is a very good first step!
@Gob_1232 ай бұрын
@@DrdeBruinsClassroom thank you. I really struggle with paper 2 and the exams in two days so just hoping the papers not to bad.
@emily-dc8cj2 ай бұрын
oh my gosh THANK YOU!!! rearranging this equation has been the bane of my existence for this entire A level and it finally makes sense!
@DrdeBruinsClassroom2 ай бұрын
That's what we like to hear!
@NexaaAI2 ай бұрын
Your so amazing bro🎉
@moulikarora78902 ай бұрын
Hi I have a question regarding AQA GCSE Physics Paper 2 topic Waves required practical on infrared. If the 6 mark is how we check emission of infrared, will we talk about the Leslie Cube practical and how to set it up with the safety precautions and errors students can make. And if the 6 marker is on absorption and emission, we talk about both Leslie cube and metal plates Vaseline practical right?
@kai.mitchelle51822 ай бұрын
Could you draw and label the apparatus for 6 marks?
@bwjt56562 ай бұрын
I’m gonna for reflux or distillation
@bwjt56562 ай бұрын
I’m gonna for reflux or distillation
@shanuarora91102 ай бұрын
Hi, I was wondering if you could type up a 6 mark model response to a question on AQA GCSE Physics Paper 2 Topic Waves. Please could you type a model response on the required practical in the waves unit on using a Leslie Cube to detect infrared.
@RSS13502 ай бұрын
Could you not use the fingerprint region to find out which is pentan-2-one and 2-methylbutan-2-ol?
@DrdeBruinsClassroom2 ай бұрын
You can, but fingerprinting is way more time consuming than looking for big peaks
@henryindia81952 ай бұрын
is it even worth trying to go for full marks in these questions... seems like a waste of time in the exam
@DrdeBruinsClassroom2 ай бұрын
I agree they can be a time sink but you can also get full marks in a handful of lines. My biggest tip is try to figure out what the 3 "stages" are
@henryindia81952 ай бұрын
@@DrdeBruinsClassroom okay thank you for the reply :)
@ra-ty7wd2 ай бұрын
This is amazing please make one for paper 2!!
@A-jx9ib2 ай бұрын
why does butanone only have van der waals and not dipole-dipole interactions
@DrdeBruinsClassroom2 ай бұрын
It doesn't. I just had a moment of madness and missed out "and dipole-dipole interactions"
@urbanfox59922 ай бұрын
so how did you pass your exams? Me: Dr Bruin
@sheilabirling2 ай бұрын
thank you soooo much! you are really saving me❤❤
@annagorshkova66602 ай бұрын
really great video, you are saving my gcse but at 35:05 I thought EM waves travel at 3 x 10^8 not 3 x 10^6. Sorry if I'm wrong
@DrdeBruinsClassroom2 ай бұрын
You're right and that's the second time I've made that mistake this week :-/