Edexcel GCSE Chemistry Paper 2 Higher Tier 1CH0 2H - 20 Jun 2022 [Exam Chat]

Q10, second last page.

I do not remember this Q do u do edexcel higher

it was at the end about the alcohol core practical they were investigating how different alcohols raise the temperature of water in a polystyrene cup and it wanted you to give a problem with the apparatus

I do not remember this Q do u do edexcel higher?

This wasnt higher combined

What was the bond energy calc answer

for combined it was like -530 kJ i think -- i could be wrong

for combined it was like -530 kJ i think -- i could be wrong

I got somet like that, what did people put for how the flame test step 3 could be improved

Put it in the hottest blue part of the flame?

What did you guys write for both the six makers? Was it like ammonia gas or something because it turned the litmus paper blue? And an ionic compound because it didn't conduct as a solid.

Also, was I the only one struggling to write much about the catalyst 6 marker because there wasn't much to say, expect that it reduced activation energy, more surface area so more collisions hence speeds up reaction rate?

wasn't substance V ammonium bromide?

wasn't substance V ammonium bromide?

Ah crap, it makes sense why there was a high boiling point then. It's a covalent bond. Yeah you're right.

Would I get any marks for mentioning it's an ionic substance then? Because apparently it's not, but aren't ionic impounds the ones that don't conduct as solid but do as liquids or in solution?

i multiplied all the numbers by 2 to get whole numbers -- will that be okay?

ammonium bromide is ionic isn't it? atleast that's what I put because if it were covalent it would conduct electricity at all, which did in solution

yeah its ionic because theres positively charged and negatively charged ions and exactly it conducts electricity

I got that in triple aswell.