OCR Chemistry B (Salters) Thursday 10th January Discussion

Nope, you'll get nothing for saying active site thats biology tbh. Marks will be for - So you'll get 1 maybe 2/2

-Poisen coats catalysts surface
- Preventing reactants from adsorbing onto catalysts surface
- Therefore catalyst cant get involved in the reaction

i just put s02 is a giant covalent structure therefore the 0 would be bonded to 2 silicons

a very clever paper! - it was the type of paper to which everyone thinks they all have done well!

a very clever paper! - it was the type of paper to which everyone thinks they all have done well!

Yeah I know I just didn't think giant covalent for any reason dropped that mark definitely

Yes unofficial paper would be good. I tend to only remember the topics...I know there was:
Cracking
Reforming
Beta Decay
Mendeleev
Bond Angles
Bonding
Alternative Fuels
Octane Number
Bond making/breaking
Empirical formula
Energy from a fuel

That's about it I can remember and in completely the wrong order

hey I have the paper you guys did today for mock tomorrow. If you don't mind can you please tell me on what to revise on. Thank you so much

~There was also a question about how the periodic table shows the atomic structure or something like that

hey guys quick question ... might sound stupid.... but for the question on type of hydrocarbon produced by the reforming process ... i put arenes ... i didnt know which one to put cycloaklane or arenes .... but i chose arenes at the end ....... do you think it is correct?

In reforming only cycloalkanes and hydrogen are formed.. sorry

I put for the silicon dioxide that there is an extra shell of electrons...I honestly had no idea left it until the end and with 5 mins to go just wrote that :/

What did people get for the empiracal formula question?h