GCSE Chemistry - Electrolysis P2 - Electrolysis to Extract Metals From Oxides - Explained #41

This video covers:
- How to extract reactive metals from their oxides using electrolysis
- Recap of extracting unreactive metals with 'reduction by carbon'
- The specific example of extracting aluminium from aluminium oxide
- Writing half equations for electrolysis (higher tier)
- Writing overall equations for electrolysis (higher tier)

This video is suitable for:
- Both tiers (except the end which is for higher tier only from 4:15)
- All exam boards
- Triple and combined science

[nebula-collector]

Good luck to all on chemistry tomorrow.

[jaromedovey]

'' i spent all my time on chemistry'' gang where you at

[vibes.]

Sir i have huge respect for you, i just discovered your channel, and now you helped me clear out something my teacher couldn't in just 4 minutes, short and simple. Thanks you Sir.

[madeleinej]

Finally, someone who can teach me the stuff I actually need to know all combined into one short video that I don’t get bored of, leave breaks so I am able to think bout what has just been said AND have all these videos for free for biology physics and maths as well, I appreciate this so much! Keep up the amazing work because this is how students should be taught. Everyone is saying this but I have learnt more from watching your videos than I have listening to my teacher for almost the whole of year 10. From the bottom of my heart, thank you! 😊

[Cognitoedu]

Hi everyone - we've got two mistakes to own up to here! 1 - the formula for Aluminium Oxide (at 0:20), should be Al2O3, and *not* Al3O2. 2 - the battery should be drawn with the shorter lines (the negative terminals) on the left, and the longer lines (the positive terminals) on the right. Sorry about that

[techiester]

There is only one difference between chemistry students, many miss out on cognito ;)

[nt.t]

chem paper 1 tommorow i might be cooked

[DrK-qigr]

Amazing lecture man, you taught me more than my chem teacher as usual

[miraculoussimpson]

I swear this channel has helped me so much I can’t even express my gratitude for this channel 😭😭

[omagah]

Thanks for saving my exam 🙏 Our teacher literally doesn’t explain anything at all and you explained it better in 6 minutes than he did in 4 classes

[AnitaMohan-gp]

I am a chemistry teacher, and i noticed that your electrolysis diagram's battery is wrong. The positive side is connected to the cathode, and the negative side is connected to the anode. This will cause the current to not work, as it should be the other way around. My ninth grade students pointed this out, and I just wanted to point it out in case anyone needs the help.
Overall, I really enjoyed your explanation, and this was a helpful video.

[gracerobins]

thanks so much for listing the tiers this is for! i’m higher and i’ve been worried i’m only revising foundation- thanks a lot for this x

[ClaraMorri-ynrw]

you have made me the king of electrolysis

[aathirar]

Thank u so I usually don't comment but this explanation was wayy too good not to. I didn't quite get this topic at first when it was taken in my class but now I understand 💯

[agmakes]

Who’s watching this cause of online lesson

[terryattard]

I really love these videos. I do electrolysis on a very frequent basis - that's how I found these videos while browsing. However, I cannot wrap my head around putting that molten metal into a beaker. I think "crucible" is the word you're looking for sir! :)

[BrendanHolt-rhgf]

I am so stupid!!!!Oh god save my chemistry!!!

[ChisimdiOtaluka]

I love this channel so much and I thank everyone involved in it

[ollielax]

Very good, thank you. Shouldn’t the battery be connected the other way, or the electrodes swapped? I say this because I think the electrons will be repelled towards the anode, and the positive ions repelled towards the anode?

[anooshatapes]

Thank you!! This is gonna be in my test and I didnt understand it, I do now :))