GCSE Chemistry - Exothermic and Endothermic Reactions #43
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- Опубліковано 16 чер 2024
- In this video we cover :
- What exothermic and endothermic reactions are
- What reaction profiles are and how to draw them
- What activation energy is and how we show it on reaction profiles
If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
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- 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
even though I cant make use of these resources personally since my exams are almost done, I really, really appreciate your hard work for us students! Thank you so much!
same here
Why do we have to pay for it
Sir I have a question, so if I put a cold water bottle out from the fridge and now it is gaining heat in order to balance its temperature with the room temperature so will it count as an endothermic reaction?
This guy is the reason why I am understanding chemistry
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My teacher relies more on tylo de wit
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His explaining is clear and his visualizes are appealing. Makes for great teaching.
i love how you explain the activation energy, it's simple and very helpful to understand.thank you
Glad you enjoyed it Nur! 👍
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being home schooled seems like such a flex. You learn best in your own ways
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Thank you for this video! It helped me understand the concept better!
We've had 4 lessons on this in class, I didn't get it one bit, but a five minute video or yours is great, Ive started to get it, thank you cognito
Love the illustration ,and explanation so visible to understand
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Same here :)
@@tobyellis3639 Are you sitting for this oct/Nov?
Monica Ruben fortunately not, I’ve got my exams in June 2021
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I’ve got my paper 1 on Friday and I’m predicted a 7 but I’m aiming for a 9, your videos are incredibly helpful, so is the website, keep up the great work!
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Glad you liked it Mishael 😊
Tomorrow I final exam on chemistry that includes this topic an you might be the reason that I get a good mark - Thank you! So much
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Same 😂
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Thank you so much Aoife, glad you found it helpful 😊
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At the end of the day its just you and Cognito❤
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how is your polish now is it better
@@omarkhatib7619I imagine it’s quite decent
This has to be the best exothermic and endothermic reaction video out there!! Thank you sooo sooo much!!
Thanks Cynthia, glad to hear you enjoyed it 👍
Who is in quarantine
Team Innocence everyone
You are a Pooki
i hate schoool
same same
couldnt agree more lmao
same
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i agree
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g7? do ya mean year 7?
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Very good brother
thank u so much, it's clear
Why isn't this auto-subtitled? No CC
love the video........really helpful
THANKYOU❤
how do we know wether the products have high energy or not? so we can either place them low or high?
A good chemistry textbook should present a list of bond energies called enthalpies. Like a mass balance, you only have to count de bonds in a given compound adding theír respective enthalpies. And a simple enthalpy balance between the products and reactants of a given chemical reaction will let you know whether the reaction is exothermic or endothermic by a calculation known as the reaction enthalpy.
thank you sir once again
you are a legend
🙌🙌
Wait so is a chemical reaction in which the reactants have more energy than products exothermic or endothermic
Exothermic
i love u thank u for this
This is the same video
Hi Zayn - it is! We're re-uploading this vid as we decided to make some small changes to timing of it as we felt it was a bit fast. Tomorrow will be a new upload though :)
My chem gcse is tomorrow I’m watching these in hopes of passing
Are the graphs if endothermic and exothermic in the video catalysed. I don't quite understand
Same😢
very gud thankoioooo i get 1st placositon in my met h subjict aht meh skoulE
Thank you
Th
Anks
Hi sir, I would like to know the software that you used tp produce the video? Thank you sir
Best❤❤❤
Who else is here because they have an exam tomorrow 😭
Oh my GOD my final exam is in an hour I learnt the topics my teacher gave me but the test questions are sooo hard
SAVER OF LIFE
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Thank you so much...chemistry has always been such a mess for me!!!!....one correction, at the end when you wrote chemicals on the graph for the endothermic reaction, you wrote CaO+O2 instead of CaO+ CO2.
Thank you!
Look at 2:52, he wrote CO2
@@nabeelahmed4862 5:21 I'm talking about the energy level diagram.
❤ its good
when you have to watch science videos for online lessons 😭
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I can't get my head around the endothermic reaction because I would have thought that because it requires more energy to start the reaction the reactants would have a stronger bond (more energy) ?? plsss someone help
Yes They have stronger bonds so they need more energy to break these bonds
His lisp when he says destroyed at 1:30 makes it impossible to not laugh
Tbh your as good as my teach BUT your a good revision
I'm trying to wrap my head around this question, but why do the reactions between metals sulphate solutions considered as exothermic?
I asked my teacher and when she reply me I will answer you
because the bonds in the reaction are being formed, and this releases energy, hence considered exothermic lmao tell me if this helped
@@nawal8790 this really helped, thanks
@@sail4549 anytime :)
4:43
i had fun actually but im not that type of person who likes chemistry often
shut up no one cares frfr
I understand nothing...
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Helal olsun
Warning ⚠️: "no energy was made or destroyed in this video"
you talk really fast, it would be much more helpful if their were captions
you can change the playback speed if he talks too fast
@@immanuelfarag3664 that didntvwork
if a reaction is endothermic surely it would get warmer as it is taking energy in
it is taking in energy making it's surrounding and itself colder.
I know you wrote this a while ago, but it can be either. It just matters if it's taking in energy or not.
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Life savar
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Shrimplin
I never understand big words in chemistry smh
I didn't understand
ughhhhhhhhh
you got your calculations wrong mate 💀💀💀
Æ
bruiv
Ew I mean ey
this video is not helpful
Kind of agree with you (but Video is well made)
maybe u didn’t understand anything the video is great and well made!
@@immanuelfarag3664 I agree
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