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I agree it was easier, but Chemistry has never once scaled down like that, no chance to be honest.

Hey, it specified low solubility because it mentions "flowing water," if it was highly soluble, then the flowing water would not have been necessary for "several days," which they also specified. It was simply to match the context.

I don't know about it being OOS. We know how to manipulate complex numbers written in Euler's form which was sufficient to solve question 8. I mean if it really was OOS, they probably wouldn't make the answer impossible to come up with. So with that in mind I immediately jumped to A because it...

It was D. I attached a pdf I made that shows how people got B and why D was right so hopefully it’s clear

As long as you did it hard enough it should be fine. Papers used to be done in pencil even with scanning.

Sounds about right, probably closer to 70. I think there’s a few PDFs of the solutions floating around here so you can “mark” what you did if you remember it well and see what you got, that’s what I did. Keep in mind each of the solutions I’ve seen here have mistakes but they are obvious errors...

Yeah, what do you think an E4 mark will be this year?

My mate and I also wrote this… but one of them was doubting it so I just wanted to check what other people did. It really couldn’t have been anything else. Hopefully you went well for the rest of it.

Congrats on the bragging rights, hopefully you got the 2 marks. What did you write?

No, we cannot quote it. Most of the proofs will be requiring you to prove it for those 3/4 cases. You must also prove the basic case. However, you can reference it in a later question if you need to.