IGCSE CHEMISTRY SOLVED past paper 0620/61/O/N/22 - October / November 2022 Paper 61

No video

IGCSE CHEMISTRY SOLVED past paper 0620/61/O/N/22 - October / November 2022 Paper 61

Рет қаралды 8,499

Dr. Mona Seif

Күн бұрын

Пікірлер: 14

@maven8470 Жыл бұрын

wait hold on, for the graph shoudnt it be a curve?

@DrMonaSeif Жыл бұрын

Yes it is a curve, but because they are pretty much straight lines rather than curves in this question as the points align in an almost straight line; thus you should end up with something like that, just make sure you draw them freehand and not with a ruler, mine got modified by the app.

@maven8470 Жыл бұрын

@@DrMonaSeif ohh thank you so much!!

@KX-yx4gj 3 ай бұрын

Hi, I am a bit confused on Question 2d. I don't understand why is there no change. Also, for question 3e, how would I know whether the anion is sulfate or sulfite as it shows both a positive test for sulfate and sulfite. Could you please help me out? Thank you!

@Maryammmmm666 Жыл бұрын

JazakAllah khair sister

@Why_did_YouTube_add_handles Жыл бұрын

why was there no change in question 2 (h), is it because 50 degrees celsius has higher solubility?

@DrMonaSeif Жыл бұрын

Yes the solubility at 50 is higher than that at 80, so when the solution is cooled NO precipitate will be formed and the solution will remain colorless.

@xdSloshy 6 ай бұрын

When do u start the graph at origin and when do u don’t do it?????????

@shrudayie 6 ай бұрын

they usually state if you must extend the line to (0,0) or else dont

@brianyong9948 10 ай бұрын

The last may/june paper is given a list of precipitate to refer, does oct/nov paper still the same?

@NoorFatimaxx 10 ай бұрын

Yes it will be given. I am taking the exam tomorrow!

@maven8470 Жыл бұрын

i always get confused when they ask for a curve and when they dont

@DrMonaSeif Жыл бұрын

There is nothing to get confused over, Cambridge is usually pretty straight forward, when they ask for a curve you draw them a curve and when they ask for a straight line that is what you draw, as simple as that👍.

@marwababiker7457 11 ай бұрын

when its a line graph do I just draw a line of best fit or connect every two dots separately???@@DrMonaSeif