AS Chemistry Edexcel Unit 1 June 2020 Paper - Dr Hanaa Assil

[marwababiker]

in question 19 how did you know chromium was a +3

[wazowski]

Thank you for this! You're a lifesaver

[lakshikawijesinghe]

thank you miss, sry Dr. You are a lifesaver!!

[repeatandtakeaverage]

Hello Ms Thank you for your effort, I have a small question at 25:25 why did we use the moles of ammonium dichromate instead of deducing Nitrogen moles and using it

[aliyak]

for the multiple choice question 6a, why are the smaller peaks not included in the calculation?

[carlahadad]

In question 6 why did we take the last two isotopes only

[israthoque]

Assalamu alaikum ma'am can you please explain why did you divide in number 6 part a with 66 instead of 100?

[zunaina]

um i didnt understand how gallium has 18 electrons

[thetaismeta]

why does 22b) ii) have to be in displayed formula? cant we do it in structural formula? (44:23)

[LolwaA-qq]

Can you please do for Jan 2020 unit 1?

[allaboutkpop]

Assalamualaikum mam the video was very helpful, mam can u please do january 2020 paper 1

[primeroxx]

2:15 how do we know zinc is 2+ if its a transition metal

[aki-hbvh]

hi miss number 20 part b) ii) i dont understand how where did u draw line of symmetry in that molecule and how you classified it as trans

[waleedomari]

Hello at 24:24 how do you know that the charge of chromium is 3+?

[Black-iubd]

Can u upload the Jan2020 unit 1 solution IAL

[deenamirza]

Assalamualaikum. Can anyone explain me no.11?
Doesn't ionic radius decreases as the no. of protons increases? So here, Ga3+ has the most no. protons. But we did choose Al3+. Why?

[shireenrashida]

Loved it thanks
Do you have topic explanation videos

[amanee]

hi, you forgot the type of reaction in the last sub part of the last question. thank you. this was very helpful otherwise.