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No, I thnk it's right. In a past HSC paper, the answers said " H2 or O2" .

Oh haha The full equation is 2NaCl + 2H2O --> Cl2 + H2 + 2NaOH So I thought the three products were Cl2, H2 and NaOH. I have no idea Edit: I might be wrong lol Maybe they'll accept both? But considering it's chemistry marking...

Do you think we had to specifically write OH-? I just wrote NaOH.

Ya

I did the pop test for H2 gas?

I did this just before the supervisor said pens down :(

Nope. You know those batteries, like dry cell, lead-acid etc., they're not separated, but they're still galvanic cells.

The weighting isn't that high and it's just your first assessment I'm assuming, so dw about it (:

Raw mark database, I guess.

Probably ~56-58

how everyone should think.

chlorine is being reduced at the cathode, but the actual electrode isn't 'made of' cl. Pt is used as the electrode because it's inert, and won't get attacked by chlorine.

chlorine isn't the electrode. it's Pt.

Is it 3.88g ? :s

re: HSC Chemistry Marathon Archive 4

Isn't this just the thing with the nuclear reactors and particle accelerators/cyclotrons? btw, do you guys know the dot point on discoveries of radioisotopes? i know i'm not going to remember all of those names and how they were discovered :/

Ikr. Especially the water part and the first dot point.

re: HSC Chemistry Marathon Archive If so, can't this be applied to other liquids as well?

It doesn't really matter how harsh/easy the marking is as long as it's fairly consistent

re: HSC Chemistry Marathon Archive Hmm, okay. CO2 + H2O <---> H2CO3 So, adding water won't affect the equilibtrium?