Summary
Summary A LEVEL CHEMISTRY OCR B OCEANS
- Module
- Elements from the sea
- Institution
- OCR
this is a summary sheet of A- level chemistry oceans topic
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halogensElements from the sea
the
-
>
-
most reactive non-metals
found naturally in compounds
>
-
physical properties & risus and benefits of chlorine
Flourine Chlorine bromine iodine
afficult to [
transport have d
small
room Paleyellow darured black solid >
-
toxig
greengas Ventu
temp gas naud (sublime to purple vapour >
-
reacts w/ water - release (12
I moderat
(aa) green(pate) orangel brown
-
needs to be in pressured pressure cha
I consumer
↑
yellow
Inexane) pale green brown/ Violet
red transponed as haud (more
swongest oxidizing
can se)-men gas !
reactivity agent
Chlorine ovdin a
how to routine check :
dipped in ammonic
>
-
com
whire cloud
8) NHz +
3Ck >
- GNHyCl +
Ne
chlonde reauna
chemical analysis
chionne Silver while precip(s)
conc ammonia
S
bromine-
nitrate .
fully soluble
cream p (s)-
iodene pamally soluble 2
yellow p(s) insoluble .
electrolysis unless metal is
> copperman Ha(a) 2420 +
ye H + 20H
catnocle =
negative produced =
anode :
positive
↓ 4
+
> 2H20
- @ + + 4H
+
oscygen formed 18 : Sulfate or ninale
or
hydroxide
↳ 40H - -
0 + 4 +
2H20
equorum
M
rate "forwards
ze
monum
ever &
time
th
dynamic equlbrem- rate of forwards
Ja
=
rate of revele
(in a closed system
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