In schools the teachers have to follow the school laws and teach based on school specifications. We had a teacher once who was straight forward teacher, but the school kicked him out and said he was "inadequate", although he taught us more than other teachers could ever in that short period.
This guy is simply amazing, I feel very lucky I found his channel. Thank you it was perfectly clear, my chem teacher took like hour an a half to explain this yet no one in my class understood
I thought oxidation is loss of electrons and reduction is gain of electrons so why do you say lithium has gained oxygen. Does anyone know how gaining oxygen and reduction is linked?
You are correct. However, oxidation is also gaining oxygen and reduction is also losing oxygen. The idea of gaining or losing electrons was developed after this.
If you're aiming for a high level and you're in Year 10, I'd suggest two hours a week in total for Science at this stage. In year 11, I'd suggest around 4 hours a week.
I have a doubt. Given the fact that gaining of oxygen is oxidation whereas losing of oxygen is reduction; if we use this on [ zinc sulfate + oxygen ---> zinc oxide + sulfer ] we can clearly see that zinc has gained oxygen atoms but if use half-ionic equations we can note that there is no change... So what should I write?
I don't think that would ever be a GCSE question to be honest. However, you need to keep the two definitions of oxidation separate. So in your example, it has been oxidised in terms of oxygen but in terms of electrons it has not.
Hi, I’ve been on your website and noticed that there were GCSE Science Revision: Chemistry 1 Revision Cards. Are those cards and these videos for the Edexcel syllabus as that is what I am doing? Many thanks, Will
Hi. The revision cards are for last year's spec and are old so you shouldn't use them. I'm going to remove them at some point. However, the 9-1 videos are for the current spec. Although they are written from the AQA spec, the Edexcel spec is very similar. I would recommend that you check your spec though.
You have to know the reactions of potassium, sodium, lithium, calcium, magnesium, zinc, iron and copper with cold water and dilute acid and place them in order of reactivity.
you mean taking notes is time - consuming yes you are so right when I watched a 5 minute video of freesciencelessons it took me 25 minutes to make good notes........
Calcium can only be displaced by an element that is more reactive than calcium. Zinc is less reactive than calcium so calcium cannot be displaced by zinc.
No the exam question will give you all the information that you need. You will either have the reactivity series or the results of an experiment so you can work it out yourself.
Please Stop Calling Me A Careless Zebra Instead Try Learning How Copper Saves Gold.... This is a mnemonic... Potassium, Sodium, Lithium, Magnesium, Aluminium, Carbon, Zinc, Iron, Tin, Lead, Hydrogen, Copper, Silver, Gold ... and u can add Platinum at the end
This guy is an absolute legend, no 1hr lesson could teach me how much he does in 4 mins!
brooooooooooooooooooo exactly
we need straight forward teachers like him !!!!!
In schools the teachers have to follow the school laws and teach based on school specifications. We had a teacher once who was straight forward teacher, but the school kicked him out and said he was "inadequate", although he taught us more than other teachers could ever in that short period.
ive learnt more watching a couple of hours of these videos than i have in chemistry lessons this year
This man is absolutely amazing, he turned the most confusing thing into such a simple video! Thank you so much, we need teachers to be like this!
The smile at the end is so wholesome awww.
ikr
Aww
AWW OMG
never seen him smile until this 1
This guy is simply amazing, I feel very lucky I found his channel. Thank you it was perfectly clear, my chem teacher took like hour an a half to explain this yet no one in my class understood
Get this man an oscar
Wrong prize
@@entruh4520 lol
I think he means a noble peace prize?
@@entruh4520 ikr
No joke went from a 5 to a 9 cus of this guy. I fuckin love this man
Thanks for this! I’ve started to do 2.5/3hrs of science revision a week simply through watching your videos and making notes. :)
Same
Where are you in life now
@@Idklol10102 guess we'll never know
Sadly
@KingKhan-do7nc im responding to this because each of these comments are a year apart
literally how im learning science in lockdown
Schoolwork 😒
Same
lmao
Sameeeeee
I am so confused I don’t understand chemistry 😂😂😭😭😭😭😭😭😭😭😭😭😭
To whoever that has disliked this video: thou hath sinned and thou shalt face judgement
how could one be so cruel and haveth such heart of stone
Thy blood drenches with hatred and guilt
so true
@@sophiemae4119 why did thou ruin thine chain of elizabethan language? Thou shalt face punishment.
The people who disliked the video were the school teachers that realise how bad they are compared to him.
man i wish you were my science teacher XD
I didn’t understand a lesson in class BUT DIS GUY GOT ME COVERED
OKAY THIS ACTUALLY MAKES SENSE TO ME AND IVE BEEN STRUGGLING WITH THIS FOR AGES IN MY LESSONS !!
I'm glad I could help. Thanks for the message.
If I were a education minister, I would have given you an oscar
Isn't an oscar for people in the entertainment industry?
nobel peace prize ?
you have saved my life, AND my grade. Seriously, I owe you my soul now
god bless this man and whatever he does fr.
man i'd love to eat the gold nugget
Haha lol. So quirky and random. Your so funny
Mmmmmmmmm
good luck everyone in 2019 x
Famous last words
I'm here in 2020😬😩😟😬🦠
This guy is a literal life saver
The comments literally say “ 3 yrs ago, 10 months ago, 4 months ago “ like am I the only one watching these videos on sep 2020!🤔😳😭
Nah there just the most liked and shit there's bare people watching now cuz of upcoming mocks
me! got my mocks in two weeks lol
i have my chemistry mock soon lol
I have my mock today lmao
Chemistry mock tomorrow
Get this man a noble prize
Tomorrow is my exam . And I am doing my last minute revision .I hope these videos will help me get the grade I want 🤞
hey how did u do
exams this morning just started revising
thanks so much glad I found this one, watch all the rest. I recommend this channel soooo much
when will you be updating the biology and physics (9-1) spec? Love the videos, they really help!!
I thought oxidation is loss of electrons and reduction is gain of electrons so why do you say lithium has gained oxygen.
Does anyone know how gaining oxygen and reduction is linked?
You are correct. However, oxidation is also gaining oxygen and reduction is also losing oxygen. The idea of gaining or losing electrons was developed after this.
Thnx
Perfect! I was revising this today for a end of term test
4 years later and im in your position !
@@bodrulmiah6985 same here
@@bodrulmiah6985 same lol and i have year 10 mocks after easter break.
@@bodrulmiah69851 year later and i’m in ur position
2024 anyone?
I have my "mini assessment" that's basically an exam for chemistry tomorrow and this is saving my life
We can all agree this man is a true legend
Am I the only one who is watching in 2024?
nope
Me
I love this man, you make everything seem simple and make things easier to sound.
Science homework brought me here
same, im annoyed
my science test brought me here-
he really is a good teacher, even my own teacher recommends him
He is the reason why I’ll be passing my chemistry exam tomorrow!
These videos really help me a lot , my gcses are just around the corner it sums up all my doubts and solves it thanks a lot.
hows ur prep going
This man is a pure lifesaver.
I'm reviving your legacy ,it been three years since your comment
We all know that feeling when he says "remember" lol
My favourite part of all his videos lol
Thanks a lot, great:)
Isn't the full reactivity series (with hydrogen and carbon):
Potassium, Sodium, Lithium, Calcium, Magnesium, Aluminium, CARBON, Zinc, Iron, Tin, Lead, HYDROGEN, Copper, Silver, Gold, Platinum?
Yes but you don't need to learn the reactivity series. You need to learn what is in my video "The Reactivity Series".
THANKS SO MUCH THIS WILL HELP OUT WITH MY TRIPLE SCIENCE...YAY!
Hi
What do you suggest for a good study habit. (i.e. How many hours per week) For my GCSE'S.
If you're aiming for a high level and you're in Year 10, I'd suggest two hours a week in total for Science at this stage. In year 11, I'd suggest around 4 hours a week.
Freesciencelessons well I’m doing 3 hours a day...is that too much or shall I lower it.(in year 11)
he said 4 is good
How many hours I should learn bio.chem.phy 9th grade
thank you man your videos are really helping me out
how can lithium reduce magnesium if its lower down the reactivity series?
It's not
Lithium is higher than magnesium in the reactivity series.
All hail the king 🙇♂️
Hi - does anybody know if Paper 1 includes bioleaching and phytomining? Thanks.
Yes it does, you should also know disadvantages and advantages of it like how the environment is damaged due to phytoextraction or bioleaching
Someone give him 10million subscribers he needs more!
When the elements get oxidised to displace, are they getting burnt?
I have a doubt. Given the fact that gaining of oxygen is oxidation whereas losing of oxygen is reduction; if we use this on [ zinc sulfate + oxygen ---> zinc oxide + sulfer ] we can clearly see that zinc has gained oxygen atoms but if use half-ionic equations we can note that there is no change... So what should I write?
I don't think that would ever be a GCSE question to be honest. However, you need to keep the two definitions of oxidation separate. So in your example, it has been oxidised in terms of oxygen but in terms of electrons it has not.
anyone else here after exams being cancelled but still got mocks?!
meeeee h
sadge reality
If the metal is less reactive than carbon, how do you extract it? By displacement and if so with what?
By displacement with carbon.
So, to extract a metal, which is less reactive then carbon, you use a displacement reaction? What if the metal is more reactive than carbon?
Ikhlas Mahad you would use electrolysis
what is the difference between a displacement reaction and extracting metals?
Thanks you sir, you are loved by many!
this man is my only love
Your revision cards are really helpful, thank you very much for them
Where did you get them
@@nicolephiri6770 thats what im saying
are we supposed to memorise the reactivity series?
Madeline Palmer I don’t think so
Yes for triple higher tier Edexcel
Hi, I’ve been on your website and noticed that there were GCSE Science Revision: Chemistry 1 Revision Cards. Are those cards and these videos for the Edexcel syllabus as that is what I am doing? Many thanks, Will
Hi. The revision cards are for last year's spec and are old so you shouldn't use them. I'm going to remove them at some point. However, the 9-1 videos are for the current spec. Although they are written from the AQA spec, the Edexcel spec is very similar. I would recommend that you check your spec though.
Bruh I thought displacement reactions only occur with the group 7 elements ("The Halides/Halogens")
Thanks ..these videos are really helpful
Free science lessons I think there might be a typo error in this video at 57 seconds is it minerals or metals ?
It's minerals (these are rocks which can contain metal compounds).
Literally a life saver
this saved my life. i got a test tomorrow
I'm glad that the video helped. Good luck with your test.
My foreign chemistry teacher has adopted your accent and it must be because she watches your videos... for example: Iron => Ayyyon
4:04 finally found the vid that smile comes from 😂❤❤❤
So reduction is loosing oxygen but ends up gaining more of its atom ? Does that make sense
You're an official cool kid, welcome to the team.
Do they give you the reactivity series in the exam or you have to learn it all in order ?
You have to know the reactions of potassium, sodium, lithium, calcium, magnesium, zinc, iron and copper with cold water and dilute acid and place them in order of reactivity.
2021 anyone?
1 hr 40 mins = 3 mins
you mean taking notes is time - consuming yes you are so right when I watched a 5 minute video of freesciencelessons it took me 25 minutes to make good notes........
I've got mocks in 2 weeks and they might end up being our actual grades if we get another lockdown, wish me luck
How did you do?
Me too
turns out there was another lockdown😂
im very confused why is that zinc equation impossible ? is it because the calcium needs to displace the zinc as its more reactive ? please reply
Calcium can only be displaced by an element that is more reactive than calcium. Zinc is less reactive than calcium so calcium cannot be displaced by zinc.
@@Freesciencelessons in the video it shows zinc displacing oxygen which is why i think people are confused
do we need to memorise the reactivity series? Thank you sir.
it will be of great help to do so
Amazing video this man is really good, nice and simple explanation and its very effective and helpful nice job my man.
I thought oxidation is loss of oxygen and reduction is gain???
No that's not correct I'm afraid.
@@Freesciencelessons ahh it's ok realised that its the opposite way round for gain/loss of oxygen and electrons. thanks for the amazing videos!!
Good luck everyone 2021!
When teachers just send you a link to this video instead of teaching you it themselves
ikr its so annoying
Ik my chemistry teacher sent this link XD
The smile at 4:05 tho
for the exam will we need to memorise the reactivity series??
No the exam question will give you all the information that you need. You will either have the reactivity series or the results of an experiment so you can work it out yourself.
For science revision shall i just use ur videos and do practise qs or use cgp as well
I would suggest watching my videos several times and writing down key words.
Why is displacement reactions are also redox reactions?
Because the more reactive metal reduces the less reactive metal (and the more reactive metal is itself oxidised).
I still don't understand how metals can be extracted using carbon can someone please explain
would phytomining be efficient
is this aqa or edexcel
These are based on the AQA spec but the Edexcel spec is very similar so you'll find loads of overlap.
Thanks
Thank you sir!!
I'm even 2 years later then u
hello free science lessons Mr Lawrence sent me
hi sir
do we need to learn the reactivity series
You won't need to remember the reactivity series but you might be asked to construct it together using data.
Thank you for the wonderful video
how do you memorize the reactivity series >??
Please Stop Calling Me A Careless Zebra Instead Try Learning How Copper Saves Gold.... This is a mnemonic... Potassium, Sodium, Lithium, Magnesium, Aluminium, Carbon, Zinc, Iron, Tin, Lead, Hydrogen, Copper, Silver, Gold ... and u can add Platinum at the end
love this video, helps me from getting another F. love the suit
nice good work im 12 and i understand this preety good teacher
well well well, look who's after the chem class hmmm
legend
Where are your revision workbooks?
I'll be releasing them later in 2017.
Ok.Thanks
at 2:55 , where did you get the numbers for the elements from?
balancing the equation
It would help if you done biology in the new 1-9 gcse
I will be doing those soon.
my gcses are coming in less than a month...i'm over here in the comment section.
someone give me a reward if I get above grade 5!
oof i wish i started chemistry 3 weeks ago but im still aiming for a 7/8
Thank you!! Your videos really help!
2023 gang!!
very easy and interesting video
Thank. I appreciate your comment.
Just saved my gcse