GCSE Chemistry Revision "Corrosion" (Triple)
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- Опубликовано: 2 окт 2024
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In this video, we look at corrosion. We explore what is meant by and by rusting and then the conditions needed for rusting. We then explore how we can prevent corrosion.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
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When your school is closed, so these videos are literally set to us as assignments to teach us the content.
Tell me about it 🙄😹
here cuz i didn't listen a word in zoom class for chem ._.
I'm passing my mocks and GCSE with this guy.
its been 3years how are ur exams lol
When he hits you with the smile😏
Howd u do?
Anyone else learning this while the schools are closed lol
Me
im here 1 hour before my exam
me here
Only the real ones know this absolute mad man
BRITISH GUY I LOVE YOU, YOUR LIL SMILE AT THE END BRIGHTENS UP MY DAY. IM PASSING MY IGCSES BC OF YOU THANK YOU ILY
Hi Sir, first of all Merry Christmas and a Happy New Year. I hope you had a wonderful time. I was wondering when you will finish the physics paper 2 and biology paper 2 videos. I have been using your videos for AQA Trilogy science revision and I find them very useful. I have made notes on everything except the ones above. I have my mocks in mid Feb and I was really hoping if you could finish them before it as I really want to do well in them. Thanks and I will be waiting for your reply.
ugh this topic came up in today's paper and i didnt get to finish this vid so im screwed
at least it was not a rusty screw
These help so much
those nots are sooooooooooooooo useful for my IG exams thanks alot man
Learning while schools is conducting online classes 'cause schools in the Philippines is asynchronous because of the heat index. It's 45° here bruh
GREAT EDUCATION THANK YOU REGARDS
LETS GO BOYS
Aren't u a girl?😂
Sorry to bother you again, but your videos are so great I watch loads of them-what's the difference between galvanising and sacrificial protection; does galvanizing only apply to zinc, and is it a form of sacrificial protection?
Hi. That's covered in the Chemistry 2 playlist "Resources" and the video is "Corrosion".
Sacrificial protection is a method to prevent the corrosion of iron, also known as rusting.
Sacrificial protection is basically attaching a piece of metal that is more reactive that iron to the object made of iron. This more reactive metal, commonly magnesium or zinc, will corrode in the place of iron. That is, the more reactive metal will feed the iron with electrons each time the iron is oxidised to form iron ions, thus reverting it to iron once again instead of letting it become iron hydroxide (rust). Thus, the more reactive metal is sacrificed for the iron. In conclusion Galvanising is sacrificial protection
@@JesseDNME ty
thanks u will get me a grade 8
Gather them and washers and nuts and bolts and screws and what ever littlle bit of metal which is galvanised, it has to be galvanised
What are we building?
you said it yourself
a robot
Does galvanising only work for iron?
so when you mention things that will be mentioned in the GCSE so we don't have to memorize them are you talking about Edexcel or only AQA
You definitely have to know it for AQA and most likely for Edexcel too
is tarnish not AQA? Im doing Edexcel
Any1 here from swhs
exams in a couple of hours
When is the revision booklet coming out
Is galvanising only done with zinc, or can other metals be used?
Its only done using zinc, but there are different methods (such as hot-dip galvanizing) to apply zinc to iron or steel
Let's go for a pint
Damn
1:03 you say that rusting applies to alloys of irons like steel, but a second later you say we must never use the word when talking about alloys of iron. please explain?
No I say never use the word rusting unless talking about iron or alloys of iron.
@@Freesciencelessons oh, i misunderstood what you said. i'm sorry, and thanks for replying.
lesotho high school
dgs gang wya
Steel rusts faster in contact with salty water. The legs of a pier are always under sea water. How do engineers stop the legs from rusting? I watched your video many times but I could not find my answer. Please help me.Thanks!
Use a coating of zinc, aluminium oxide or cover it in grease/paint. I'm pretty sure at least.
Educator Sharmin in order of something to corrode water and oxygen has to be present. He said it at the start. It won't erode if oxygen is not present. Also if the metal was to rust under water it would be galvanised. You weren't paying attention.
anyone else here from school and thinking that the teacher shoutouts random ppl lmao
How do I get hard copies of your chemistry books?