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. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - 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
recently after covid, i was failing my subjects, well at least math and getting below average marks in pcb. I relied on your content for a while and used your website to practice past papers and the quizzes. i have improved in math and got a 71/80 in my sciences. somehow one of the teachers suspected i had cheated and took a extra test just for me. it was shorter than my previous one but i still scored a 45/50 on that test. I really appreciate your hard work that you do to make these videos. i hope you can now also implement AS and A level courses soon. Anyways thanks a lot for all that you do. - Just a student from India
"- Just a student from India" Man I feel you. The teachers in our schools are so preoccupied with things that _aren't_ about studying these days that I fear for what the future generations will have to go through. I'm sorry that you were suspected of being a cheat and for what it's worth, I'm happy that you showed them what's up with that 90%.
The fact that your teacher has no faith in you in making an improvement that when you improve greatly she jumps to conclusions and says that your cheating. Change teachers bruh
I'm afraid it is under-rated - I've just gobbled down 13 previous videos in the series before giving one like and clearly I liked them all ! Just thank you for the work involved here - my O levels are well behind me but this work makes me so jealous of all the youngsters who can get such a great start to their chemistry lives. - I'm on with the rest of the series so my weekend is fixed up nicely.
Thank you so much, Cognito! I'm a slow learner so I can't keep up as fast as the others while my teacher is teaching and this really helped me. I just found your website and I am definitely going to start using it and I hope my grades increase.
UMMM HII IDK WHO YOU ARE BUT AFTER I SAW YOUR COMMENT I RECOMMEND YOU WATCH GIFTED HANDS MOVIE BY BEN CARSON. THE QUALITY MAY BE LOW BUT WATCH IT... IT CHANGED MY MIND ON MY "BRAIN BEING TOO DUMB." HAVE A GOOD DAY OR NIGHT WHEREVER YOU ARE ON THE SPECTRUM
Thank you so much for making these videos! I have been through 4 chemistry teachers this year and ionic bonding never made sense to me but as soon as I watched this video the cogs finally clicked! Thank you so much Cognito!! Please could you do subjects like History and English
Damn…my exam’s on Wednesday and I have to complete the whole chemistry portion because I procrastinated so much. My sir has shared a 60 slide ppt with the same info this video delivered in like 5 mins! I’m gonna start learning from videos now lol.
barely passing chem. i understand a concept and then in the test when theres a question on it i get confused and end up barely passing or failing. it sucks because i am trying
I just watched this video and I feel like i understand it more than learning it in class because i was absent on the day i was learning this so im happy to be catching up
Thank you for making these really nice vidoes and they do help me a lot. Just a question here: Isn't it called electrostatic？At 1:41 you write it as elecrostatic force.
Thanks bro u made my life too easy and now I can finally pass the exam without me trying to think of a way to sweettalk my chemistry teacher into giving me the exam questions
When Na transfers an electron, it's outermost shell is empty, not full. Do we just pretend it isn't there and then call the next furthest shell from the nucleus the valence shell then?
Plzzz plzzz I have chemistry test on Monday 12 August 2024 Please a video on how to determine if a compound is ionic or covalent plzzzzzzzzz I would fail in my exam plzzz
I really appreciate the fact that you give your best in those amazing videos! Im in MYP5 of IB really struggling with studying for my mock E-Assessments which are in 2days I m behind in studying but because of your videos I finished preparing for BIO and Physics and starting CHEM thankyou is not enough
Thanks so much for this. I wouldn't have gone to any other channel for help! This really makes me understand ionic bonding better and ties key information together so you're not overwhelmed with too many facts.
if you know the atomic number, eg carbon is 6, the inner shell will get 2 electrons, the next shell can have up to 8, since carbon has 6 total the remaining 4 electrons are in the outer shell. in this video he was talking about chlorine, which has atomic number 17, meaning 17 electrons, first shell gets 2, second shell gets 8, outer shell gets the remaining 7. hope this makes sense, also open to citicism, im new to all of this, just trying to figure things out like you!
thanks a lot I followed along and made lots of notes. this video really helped me out alot!!! time to go watch your covalent bonding video... ill leave a comment there as well!
