Lol tbh, I haven't learnt either. I know the confirmation tests for all the other ones but those two I looked at and I was like stuff this. Umm, I think you should be able to get away with just one and then argue the case that if it doesn't turn X colour (not sure what it is), then it must be Fe3+ or whatever but if you can remember both, that will be heaps more impressive. I'll probably learn one of the two though- the confirmation tests basically never come up and I doubt they'd expect people to remember both of those but idk.
How'd you end up going in your physics test that Fizzy marked?