Learner Guide for Cambridge IGCSE Chemistry (0620)

112 Pages·2016·4.55 MB·English

Interactive
Interactive Learner Guide
®
Cambridge IGCSE
Chemistry 0620
For examination from 2017
Learner Guide
In order to help us develop the highest quality resources, we are undertaking a continuous programme of
review; not only to measure the success of our resources but also to highlight areas for improvement and to
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aC rbm ideg esA ems n t nI et rnait no a l dE uac it no i s ap r t fo eht aC rbm ideg esA ems n t Gruo .p aC rbm ideg esA ems n t i s
eht rb and naem fo eht nU iev ris yt fo aC rbm ideg Laco l axE im nait no s nyS diac et LCU( ,)SE ihw hc iest fl i s a deap remt n t fo eht
nU iev ris yt fo aC rbm ideg .
LCU SE reat in s eht rypoc i thg no a l i st up ilb ac it no .s eR ig ets red eC nrt e s are ep rim et d ot y poc am et ria l rf mo iht s elkob t ro f
eht ir nwo inet rna l ues . ewoH ev r , ew ac nn to ig ev ep rim is no ot eC nrt e s ot y pocotohp an y am et ria l aht t i s ankc elwo deg d ot a
iht rd ap r , yt eev n rof inet rna l ues iw iht n a eC nrt e.
2
Learner Guide
Contents
About this guide 4
Section 1: Syllabus content – what you need to know about 5
Section 2: How you will be assessed 6
Section 3: What skills will be assessed 15
Section 4: Example candidate response 17
Section 5: Revision 26
3
Learner Guide
About this guide
ihT s ug ide inrt do uec s uoy ot uoy r aC rbm ideg GI ®ESC ehC im rts y )0260( uoc res and woh uoy iw l eb aes es d . uo Y uohs dl ues
iht s ug ide anol isg de eht us rop t fo uoy r et aehc r .
yB eht end fo iht s ug ide , uoy uohs dl :
9 ah ev an evo riv e w fo eht uoc res and ahw t uoy iw l el arn auob t
9 underats nd eht rts uutc re fo eht aes ems n t aht t uoy iw l eb at ik ng
9 eb aelb ot alp n uoy r reiv is no
9 nk wo woh ot wohs uoy r iks sl ot eht eb ts fo uoy r aib il . yt
Section 1: Syllabus content
iF nd uo t ahw t ipot sc uoy iw l eb el arnin g auob t . uo Y r et aehc r ac n ig ev uoy rom e deat i.l
Section 2: How you will be assessed
iF nd uo t:
• woh am n y eax im nait no s uoy iw l at ek
• woh nol g ea hc eax im nait no al sts
• ahw t dief ren t uq eits no epyt s eht eax im nait no iw l noc at in
• woh ot at elkc ea hc eax im nait no .
Section 3: What skills will be assessed
iF nd uo t ahw t area s fo nk elwo deg , underats ndin g and iks sl uoy iw l need ot denom rts aet rht uo uohg t eht uoc res and in uoy r
eax im nait no .s
Section 4: Example candidate response
aT ek a kol a t a el arner s ’ renops es at ek n rf mo a rea l eax im nait no . iF nd uo t:
• woh ot inet rrp e t eht uq eits no
• woh ot aiov d nomoc im ats ek s
• woh ot irpm evo uoy r eax m et nhc iuq e.
Section 5: Revision
iD evocs r:
• aw sy ot eh pl uoy alp n uoy r reiv is no
• eax elpm reiv is no alp nners
• emos ab is c reiv is no iks sl
• emos ‘ pot reiv is no it ’sp
• reiv is no ehc ilkc ts ro f ea hc ipot .c
4
Learner Guide
Section 1: Syllabus content - what you need
to know about
ihT s es itc no ig ev s uoy an uo ilt ne fo eht alys ub s noc et n t ro f iht s uoc res . nO yl eht el-pot ev l ipot sc fo eht alys ub s ah ev eb en
inulc ded eh re , ihw hc are eht as em rof htob eht Core and Extended uoc res . nI eht evo ‘ riv ew ’ uloc nm uoy are ig ev n a ev r y ab is c
idea fo ahw t ea hc ipot c evoc r.s
Learner s at ik n g eht Extended uoc res need ot nk wo a l fo eht roC e noc et n t a s ew l a s emos ertx a noc et nt . ihT s ertx a
noc et n t i s nk nwo a s supplement noc et nt ; i t reuq ire s el arner s ot erolpx e ipot sc and us ipot-b sc fo eht roC e alys ub s in
rom e deat i ,l and ot el arn ne w us ipot-b .sc
Ask your teacher for more detail about each topic , inulc din g eht dief renec s eb ewt en eht roC e and etxE nded uoc res .s
uo Y ac n a osl n� d rom e deat i l in eht eR iv is no ehc ilkc sts in iht s ug ide.
Topic Overview
.1 ehT ap rit uc al et naut re fo am et r iloS d ,s il uq id s and ag es s
.2 epxE riem nat l et nhc iuq es eM aus reem nt , up ri yt and up riac� it no
.3 ,smot A eel em n st and uopmoc nds imot A c rts uutc re , eht eP rido i c aT elb and nob ding
.4 iotS ihc emo rt y ehC im ac l ,slobmys ehc im ac l ro f um al e and ab al nic n g euq ait no s
.5 elE rtc iic yt and ehc im rts y elE rtc isy lo s and eel rtc alpo it ng
.6 ehC im ac l enereg it sc nE ereg it sc fo a reaitc no and ener yg rt anefs r
. 7 ehC im ac l reaitc no s isy hP ac l and ehc im ac l ahc neg ,s raet ,s reev ris elb , redxo
.8 icA d ,s ab es s and as stl rP epo rit e s fo aic d s and ab es ,s ix o de ,s rp eap rait no fo as ,stl idenit ac� it no fo ino s and
ag es s
.9 ehT eP rido i c aT elb rT end s and rg uo ,sp rt anis it no eel em n ,st nelbo ag es s
.01 eM at sl rP epo rit e ,s reaitc iv , yt ertx aitc no and ues s
.1 iA r and aw et r ehC im ac l et ,sts ulop at n ,st ef rit il es r ,s rg eenuoh es ag es s
.21 uS ufl r uoS rec s and ues s
.31 aC rnob aet s aM nuaf utc re and ues s fo il em , ac icl u m ac rnob aet and als ek d il em
.41 rO ag ni c ehc im rts y aN em s and rp epo rit e s fo ro ag ni c uopmoc nds
nI addiit no ot eht alys ub s noc et nt , uoy are a osl eepx etc d ot underats nd and nk wo experimental skills . ro F aP ep r s 4�1
and aP ep r ,6 uoy iw l a osl need ot el arn a nuebm r fo et sts and et ts reus stl ro f dief ren t ino s and ag es s ac el d eht ‘ Notes
for use in qualitative analysis ’ eht( es are ig ev n in aP ep r .)5 uo Y ac n n� d rom e deat i l auob t eht eepx riem nat l iks ,sl and
eht es et ,sts rf mo uoy r et aehc r , and a osl in eht eR iv is no ehc ilkc ts .
5
Learner Guide
Section 2: How you will be assessed
uoY iw l eb aes es d uis n g rht ee nopmoc en:st
• aP ep r 1 ro aP ep r 2 uM( itl elp iohc ec )
• aP ep r 3 ro aP ep r 4 rW( iet n ap ep r , ehT ro )y
• a nd eieht r aP ep r 5 rP( aitc ac l eT )ts ro aP ep r 6 etlA( rnait ev ot rP aitc ac .)l
Your teacher will discuss with you which course is appropriate for you, Core or Extended.
sA em nit no ed in eS itc no ,2 eht etxE nded uoc res evoc r s a l eht as em am et ria l a s eht roC e uoc res ub t a osl inulc de s rom e ot
el arn in emos us ipot-b sc and emos addiit no a l us ipot-b .sc
Core Extended
uo Y iw l at ek three eax im nait no s a t eht uo Y iw l at ek three eax im nait no s a t eht
end fo eht uoc res : end fo eht uoc res :
• aP ep r 1 – uM itl elp iohc ec • aP ep r 2 – uM itl elp iohc ec
• aP ep r 3 – rW iet n ap ep r • aP ep r 4 – rW iet n ap ep r
• either aP ep r 5 – rP aitc ac l eT ts or • either aP ep r 5 – rP aitc ac l eT ts or
aP ep r 6 – etlA rnait ev ot rP aitc ac l aP ep r 6 – etlA rnait ev ot rP aitc ac l
rW( iet n ap ep r*) rW( iet n ap ep r*)
* Your teacher will tell you if you are going to take Paper 5 or Paper 6.
6
Learner Guide
Components at a glance
ehT at elb s us am ries eht ek y inrof am it no auob t ea hc nopmoc en t rof ea hc alys ub .s uo Y ac n n� d deat i sl and adiv ec no woh ot
arp ao hc ea hc nopmoc en t no eht iwolo f n g ap eg .s
Component How long and Skills assessed Details Percentage
how many of the
marks qualifcation
aP ep r 1 54 im nuet s nK elwo deg iw ht uo Y need ot anews r all %03
uM( itl elp underats nding , ah ndil n g 04 uq eits no s no eht roC e
04 am rsk
iohc ec ) inrof am it no and rp elbo m alys ub s noc et nt.
ivlos ng
aE hc uq eits no iw l ah ev uof r
itpo no s ot esohc rf .mo
aP ep r 3 1 uoh r 51 nK elwo deg iw ht ehT uq eits no s are rohs - t %05
rW( iet n im nuet s underats nding , ah ndil n g anews r ro rts uutc red
ap ep r , ehT ro )y inrof am it no and rp elbo m uq eits no s no eht roC e
08 am rsk
iv los ng alys ub s noc et nt.
Core
uo Y need ot anews r all
uq eits no .s
aP ep r 5 1 uoh r 51 epxE riem nat l iks sl and uo Y iw l at ek a rp aitc ac l %02
rP( aitc ac l im nuet s inev its ag it no s eax m aht t i s us ep riv es d yb
eT )ts uoy r et aehc r.
04 am rsk
ro aP ep r 6 1 uoh r epxE riem nat l iks sl and ihT s i s a rw iet n ap ep r auob t %02
etlA( rnait ev inev its ag it no s rp aitc ac l row .k
04 am rsk
ot rP aitc ac )l
Component How long and Skills assessed Details Percentage
how many of the
marks qualifcation
aP ep r 2 54 im nuet s nK elwo deg iw ht uo Y need ot anews r all 04 %03
uM( itl elp underats nding , ah ndil n g uq eits no s no eht etxE nded
04 am rsk
iohc ec ) inrof am it no and rp elbo m roC( e and uS elp em n )t
iv los ng alys ub s noc et nt.
aE hc uq eits no iw l ah ev uof r
itpo no s ot esohc rf .mo
aP ep r 4 1 uoh r 51 nK elwo deg iw ht ehT uq eits no s are rohs - t %05
rW( iet n im nuet s underats nding , ah ndil n g anews r ro rts uutc red
ap ep r , ehT ro )y inrof am it no and rp elbo m uq eits no s no eht etxE nded
08 am rsk
iv los ng roC( e and uS elp em n )t
Extended
alys ub s noc et nt.
uo Y need ot anews r all
uq eits no .s
aP ep r 5 1 uoh r 51 epxE riem nat l iks sl and uo Y iw l at ek a rp aitc ac l %02
rP( aitc ac l im nuet s inev its ag it no s eax m aht t i s us ep riv es d yb
eT )ts uoy r et aehc r.
04 am rsk
ro aP ep r 6 1 uoh r epxE riem nat l iks sl and ihT s i s a rw iet n ap ep r auob t %02
etlA( rnait ev inev its ag it no s rp aitc ac l row .k
04 am rsk
ot rP aitc ac )l
7
Learner Guide
About the components
tI i s iropm at n t aht t uoy underats nd eht dief ren t epyt s fo uq eits no in ea hc nopmoc en t and woh uoy uohs dl arp ao hc eht .m
ehT es ap ep r s aes s uoy r nk elwo deg iw ht underats ndin g and uoy r iks sl in ah ndil n g inrof am it no and ivlos n g rp elbo .sm uo Y
need ot anews r all 04 uq eits no .s
ro F ea hc uq eits no , uoy esohc eht no e
anews r uoy noc is der roc re tc rf mo uof r
isop elb anews r s A( , ,B ,C .)D
ehT eP rido i c aT elb i s inulc ded
in eht ab kc fo eht ap ep r.
Advice
Read ea hc uq eits no ac reuf . yl ehT re i s 54 im nuet s ro f aP ep r ,1 os uoy ah ev auob t
one minute ot read and anews r ea hc uq eits no .
fI isop elb , row k uo t eht anews r before uoy kol a t
eht anews r itpo no .s
fI uoy ac nn to row k uo t an anews r rts ai thg aaw :y
noD t’ kol ro f ap et rn s in eht el et r anews r s uoy ig ev .
• eil im naet itpo no s aht t are elc ar yl inroc retc fI uoy r anews r s em an uoy are es el itc n g no e el et r ,
e .g. A , rom e etfo n aht n ehto r ,s i t deo ns t’ am et r .
• esohc eb ewt en esoht aht t are el tf
noC ec nrt aet no anews rin g eht uq eits no uoy are
• don't am ek a ug e s rf mo a l uof r itpo no s
dio n.g
• never el aev an anews r alb nk
uo Y iw l il ek yl am ek ef ew r im ats ek s i f uoy rw iet dnwo
uoy r row ik n g aht n i f uoy rt y ot row k uo t eht anews r s
in uoy r eh ad.
rP aitc es um itl elp iohc- ec uq eits no s and eg t emos no e
eesl ot am r k eht .m L ko ro f :
• errro s
• uq eits no s uoy didn t’ read ac reuf yl
• ipot sc uoy dno t’ nk wo ro underats nd.
8
Write down your working
on the question paper to
help you understand and
solve the problems.
Learner Guide
Paper 3 (Core) and Paper 4 (Extended) – Written paper, Theory
ehT es ap ep r s aes s uoy r nk elwo deg iw ht underats nding , and uoy r iks sl in ah ndil n g inrof am it no and ivlos n g rp elbo .sm uo Y
need ot anews r all uq eits no .s
ehT nuebm r fo am r sk ro f ea hc
rW iet uoy r anews r s in
uq eits no ro uq eits no ap r t etfo n
eht aps ec s rp ivo ded.
ig ev s uoy a ulc e auob t woh am n y
es ap raet iop n st uoy need ot am ek
in uoy r anews r.
ehT eP rido i c aT elb i s
inulc ded in eht ab kc
fo eht ap ep r.
Question types and advice
aP ep r 3 and aP ep r 4 ah ev rohs a-t news r and rts uutc red uq eits no .s
rohS a-t news r
uq eits no s no yl ah ev
no e ro owt ap r.st
rtS uutc red uq eits no s noc at in
am n y ap r .st etfO n al et r ap r st
ac n deep nd no eht anews r ot
earil er ap r.st
9
Learner Guide
Make sure you:
• anews r eht uq eits no eb in g aeks d
uo Y are aeks d ot dra w a elom‘ uc el , ’ os two H a smot iw ht a
rD a w a diarg a m ot wohs eht eel rtc no
ap ir fo eel rtc no s ioj nin g eht m i s needed , not an a‘ . ’ mot
arraneg em n t in a elom uc el fo dyh rego n.
rP edi tc woh eht reaitc no fo atop is u m iw ht
aw et r apmoc re s iw ht eht reaitc no fo il iht u m
ehT uq eits no a sks uoy ot apmoc ‘ re ’ and inulc de an y
iw ht aw et r . nI uoy r anews r , inulc de an y
d‘ ief renec , ’s os uoy need ot as y aht t atop‘ is u m rp do uec s
dief renec s in esbo rav it no .s
more ub elb s than lithium , ’ not uj ts aht t atop‘ is u m
rp do uec s ub elb . ’s
ow T fo eht eel em n st rp ees n t in a as elpm
fo aoc l are ac rnob and us ufl r . A as elpm fo
aoc l aw s eh aet d in eht aesb nec fo air and
eht rp do u stc inulc ded aw et r , anom ia and
ehT uq eits no a sks uoy ot naem ‘rht ee other eel em n , ’st os
dyh raco rnob .s aN em rht ee ehto r eel em n st
dyh‘ rego n , egyx o n and nirt ego n ’ i s needed – not ac‘ rnob ’
rp ees n t in iht s as elpm fo aoc .l
ro us‘ ufl r , ’ ihw hc are ig ev n in eht uq eits no .
• kol a t woh am n y am r sk are aav ial elb rof a uq eits no , iht s ig ev s uoy a dog idea fo woh am n y dief ren t iop n st uoy need ot
am ek
alpxE in yhw iz n c rolhc ide noc du stc ehT re are 2 am r sk aav ial elb , os 2 separate iop n st are
eel rtc iic yt ehw n etlom n , n to ehw n ilos d . ]2[ needed.
• nk wo eht ehc im ac l et r sm ues d in eht uq eits no s
atS et owt dief renec s in eht isyhp ac l uo Y need ot underats nd eht et r m isy hp‘ ac l rp epo rit e ’s in
rp epo rit e s fo eht em at sl atop is u m and irno . ro der ot anews r eht uq eits no roc re.yltc
aC rilyx ob c aic d s ac n eb am de yb eht
ix o dait no fo a .slohocl aN em a reaeg nt , ehto r
aht n egyx o n , ihw hc ac n ixo dies a slohocl ot uo Y need ot underats nd ahw t eht et r m r‘ eaeg nt ’ em an s in
ac rilyx ob c aic d.s ro der ot anews r eht uq eits no roc re.yltc
• nk wo woh ot rw iet ehc im ac l euq ait no s in row d s and uis n g slobmys
nI Paper 3 uoy iw l eb dlot in eht uq eits no ot nI Paper 4 uoy am y eb aeks d ot ig ev a
rw iet eieht r a ‘row d ’ euq ait no ro a 'lobmys ‘ row d euq ait no , ub t i f uoy are aeks d ot rw iet
euq ait no . an euq ait no rof a ap rit uc al r reaitc no uoy
need ot rp ivo de a ab al nec d euq ait no uis n g
slobmys and rof um al e . ro F eax elpm , r‘W iet
an euq ait no rof eht elpmoc et ubmoc its no fo
em aht ne ’ uow dl reuq ire eht anews r:
oD n to ibmoc ne slobmys and HC + O2 → OC + H2 O
4 2 2 2
row d s in eht as em anews r.
01