Qualification > Sciences
Chemistry Help HERE ONLY !!
unknown 101:
--- Quote from: annie_angel on May 28, 2009, 02:16:02 pm ---
--- Quote from: zubair_slipknot on May 27, 2009, 08:58:33 am ---Reactivity table /\
|
Potassium | [PETER'S]
Sodium | [SISTER]
Calcium | [CAN]
Magmesium | [MURDER]
aluminium | [A]
carbon | [CONSTIPATED]
zinc | [ZEBRA]
iron | [IN]
tin | [THE] / Increasing of reactivity
lead | [liGHT]
hydrogen | [HOUSE]
copper | [CAN]
silver | [SHE]
gold | [GO]
platinum | [PLEASE?]
Sorry could not draw a good arrow for the increasing of reactivity...hope this helps
--- End quote ---
my friend tought me an easier way to study these...luk up^^^^
HOPES THIS HELPS :D
--- End quote ---
this is gd but u forgot lithium which is under sodium
Ghost Of Highbury:
yes..correct...forgot lithium
anyway we can change it a bit
peter's sister lauren can murder a ..............
lol
haha
unknown 101:
--- Quote from: ADi...M on May 28, 2009, 02:31:12 pm ---yes..correct...forgot lithium
anyway we can change it a bit
peter's sister lauren can murder a ..............
lol
haha
--- End quote ---
hahahaha , very good, lmao
angell:
I have a couple of doubts people:
a) Could somebody help me out with naming the 'isomers' for example, how should we know where to write 1,2-dimethyl, etc etc
b) Displacement of ammonia from its salts (explain please!)
c) Displacement reactions in metals, e/g with nitrates, hydroxides etc!!
unknown 101:
--- Quote from: angell on May 28, 2009, 02:41:55 pm ---I have a couple of doubts people:
a) Could somebody help me out with naming the 'isomers' for example, how should we know where to write 1,2-dimethyl, etc etc
b) Displacement of ammonia from its salts (explain please!)
c) Displacement reactions in metals, e/g with nitrates, hydroxides etc!!
--- End quote ---
a) i doubt anyone can explain without a diagram, but ill try, first u will hace the carbon chain eg. -C-C-C-C-C-C- , and hydrogen all around it , so this is the alkane: pentane
so u replace a hydrogen on the second carbon from the left, with a methane so its gonna become
H CH3 H H H
H---C---C----C---C----C---H
H H H H H
//// this would be the new product, which is pentane but with methane on carbon2 , so its going to be 2-methylpentane ,, if it had 2 methyl- functional groups then it would be (Number of carbons seperated by(,), depending on where the functional groups are) dimethylpentane
if it was 3 then it would be tri, 4 would be tetra.
B) ammonia is only displaced from its salts when it is reacted with a metal hydroxide, u do not need to know how it is done
C) please be more precise, so i can explain, give example or watever
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