I am not too sure with my 2b)ii), about the collision theory in respect to temperature and catalyst.
For temperature, I spoke about how an increase in temperature provides more energy to the molecules. More energy means that there is larger proportion of successful reactions to unsuccessful reactions.
For catalyst, I commented about how it provides a reaction surface for the reaction to occur (the first "law" of collision theory is that the particles collide) and also commented how the catalyst also provides attack on the right orientation of the molecules (I'm thinking about steric factor here).
Can anyone elaborate on my explanation?
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And for the question that everyone has been discussing, about the 1,2-dibromoethane elimination reaction with Potassium Hydroxide, the following are allowed (as far as I think):
Bromoethene
Ethyne
Potassium Bromide (*)
Water (*)
Hydrogen Bromide (**)
(*) The question does not specify whether it has to be organic or not. It only says compound, so I think a side product would even be allowed. But I don't think that there is anyone who would have gotten this.
(**) I'm so sure of this. The hydroxy ion from the KOH would cause an attack on a hydrogen, causing an electron to push off from the C-H bond onto the Carbon, and then the electron from the C-Br bond would move to the Bromine, forming a Bromide ion, and it may JUST be possible to make HBr as a product.
Not so sure on this.
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Otherwise I feel okay with the rest of the paper.