Full discussion of 2022 May/June paper 42 for IGCSE Chemistry. Like and subscribe if you enjoyed! and let me know if you want me to cover more papers ;)
Пікірлер: 19
@mattg91713 ай бұрын
Thank you sir❤
@shulette87146 ай бұрын
you rlly helped me understand the question! great explanation
@retajalrawahi51527 ай бұрын
for question 2 d(iv) for calculate the concentration of Ca(OH)2 in 25.5cm cubed of the limewater. i did 0.005/25/1000 just like you but i got 0.2 instead of 0.02...
@igcsewithhan7 ай бұрын
it is because u used 0.005 instead of 0.0005 ! hope that helps
@retajalrawahi51527 ай бұрын
@@igcsewithhan yes I realized 😭
@aaaa-ri8is13 күн бұрын
29:01 can it be potassium dichromate?
@igcsewithhan13 күн бұрын
Supposedly can, but since potassium permanganate is a stronger oxidising agent it is a safer answer. They didn't accept dichromate as an answer in markscheme though...
@hocustar46414 ай бұрын
thank you
@hdotfx4 ай бұрын
thank u
@maryamaurangzaib717611 ай бұрын
Thank you so much, but can you please tell which chapter is question 2 (c) from
@igcsewithhan8 ай бұрын
carbonates chapter
@maryamaurangzaib71768 ай бұрын
@@igcsewithhan thanks for replying but I am done with my CIE's so.....
@igcsewithhan8 ай бұрын
@@maryamaurangzaib7176 hahaha how was it ?
@user-pi1vv1to7x4 ай бұрын
why SxFy, cant we put fluorine first? and how can we know which is positioned first?
@khubaibhaseeb10954 ай бұрын
LOL I HAD THE EXACT SAME DOUBT JUST NOW BRO 😂😂
@khubaibhaseeb10954 ай бұрын
Did you figure it out yet?
@igcsewithhan4 ай бұрын
hello ! Generally when naming u want to put the metal before the non metal, that's usually standard.
@khubaibhaseeb10954 ай бұрын
@@igcsewithhan ?! It's a covalent compound! It's non-metal non-metal!!
@igcsewithhan4 ай бұрын
@@khubaibhaseeb1095 oh my days, that completely flew over my head ! sorry about that, but in a non-metal non-metal scenario they don't cover why S is before F when writing the compound out in the IG syllabus. If you are curious it has to do with the electropositivity of the elements, but in this scenario my advice would probably just remember most of the time the halogens will be at the back. Sorry again for misunderstanding the question 😅