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Specimen paper 2016Can you tell me which paper this is?
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Specimen paper 2016Can you tell me which paper this is?
Since oxygen's oxidation number is taken to be -2
For the overall wont it be the (-2( + (-2( ?That is we take charge of both the oxygen ions?Since oxygen's oxidation number is taken to be -2
suppose carbon's is x and overall oxidation number of ion as the structure shows is -2. So, here is we set it up:
( -2x4) + (2x) = -2
-8 + 2x=-2
2x=-2+8
x=+3
no...each oxygen ion has -1 charge so for both -1x2 which is -2For the overall wont it be the (-2( + (-2( ?That is we take charge of both the oxygen ions?
Thankyou! Could you help me with these ones too?Since oxygen's oxidation number is taken to be -2
suppose carbon's is x and overall oxidation number of ion as the structure shows is -2. So, here is how we set it up:
( -2x4) + (2x) = -2
-8 + 2x=-2
2x=-2+8
x=+3
View attachment 58764
How to find order wrt H+ ??
I found the others as 1 but idk how to do it for H+
Metanoia
(i) CH3CHO + 2CH3OH <===H+===> CH3CH(OCH3)2 + H2O
Mr. Retard explained the (a) part and I doubt if I can do the (b) part, maybe I needa revise the equilibrum chapter! is it from there?Thankyou! Could you help me with these ones too?
It's from reaction kineticsMr. Retard explained the (a) part and I doubt if I can do the (b) part, maybe I needa revise the equilibrum chapter! is it from there?
in fact I haven't covered A2 yet! what I have covered I can answer pretty wellIt's from reaction kinetics
Haha ok no problemin fact I haven't covered A2 yet! what I have covered I can answer pretty well
no problemThank you so much!
MetanoiaView attachment 58766
I don't understand why there will be no change in the beaker with Fe3+/Fe2+
Surely adding SO4- to there will also affect the equilibrium due to the common ion effect...
So why no change??
Metanoia
View attachment 58766
I don't understand why there will be no change in the beaker with Fe3+/Fe2+
Surely adding SO4- to there will also affect the equilibrium due to the common ion effect...
So why no change??
Metanoia
View attachment 58764
How to find order wrt H+ ??
I found the others as 1 but idk how to do it for H+
Metanoia
Can anyone please explain the VSEPR (valence shell electron pair repulsion) theory that we are supposed to know for chapter 3 (chemical bonding) in AS Chem? Also, I do not understand the rules. I mean, if a rule states that if there are 4 pairs of electrons (no lone pairs) around the central atom then the molecule is said to be tetrahedral with a bond angle of 109.5 degrees, however, that is not the case with a CO2 molecule which I don't seem to get as to why it is linear and not tetrahedral even though it has 4 pairs of electrons around the Carbon atom. If anyone could explain or direct me to a link online which explains it clearly with all the rules that we are supposed to know to determine the shape that would be really helpful.
Thanks.
I dont get it.hmm..this question was addressed here.
https://www.xtremepapers.com/commun...st-your-doubts-here.9859/page-733#post-942233
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