# Physical Sciences Grade 12 P2 NSC June 2012 Memo (Afrikaans)

> Grade 12 Physical Sciences Paper 2 memorandum from the NSC June 2012 (Afrikaans), 7 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/physical-science-p2-sg-english-and-afrikaans-june-2012-memo/230c1a41-a0da-4842-92a1-abb8df5e31ac
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 12
- Language: Afrikaans
- Document type: Memorandum
- Year: 2012
- Exam period: NSC June
- Paper: 2
- Curriculum: CAPS
- Pages: 7

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## About this document

Physical Sciences · Grade 12 · NSC June · 2012 · Afrikaans. Memorandum, 7 pages. Read online or download the PDF.

Read it free online on the page above; download the PDF from there.

## Document text

Text extracted from the PDF. Layout, diagrams and tables may not survive extraction.

### Page 1

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Physical Science/SG/P2/Natuur- en Skeikunde/SG/V2 4 DBE/2012
SCE/SSE ~ Memorandum

basic education

Department:
Basic Education
REPUBLIC OF SOUTH AFRICA

SENIOR CERTIFICATE EXAMINATION
SENIORSERTIFIKAAT-EKSAMEN

PHYSICAL SCIENCE P2/NATUUR- EN SKEIKUNDE V2
CHEMISTRY/CHEMIE

STANDARD GRADE/STANDAARDGRAAD

2012
TMENT OF BASIC | MEMORANDUM
DEPAMIDUCATION
2012 -05- 25 MARKSI/PUNTE: 150
PRIVATE BAG 440
PRETORIA 0001

° PUBLIC EXAMINATIONS

This memorandum consists of 7 pages.
Hierdie memorandum bestaan uit 7 bladsye.

(ene
: on \

Copyright reserved/Kopiereg voorbehou

### Page 2

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Physical Science/SG/P2/Natuur- en Skeikunde/SG/V2 2 DBE/2012
SCE/SSE ~ Memorandum

GENERAL COMMENT: Do not penalise for rounding
ALGEMENE OPMERKING: Moenie vir afronding penaliseer nie

QUESTION 1/VRAAG 1

4.1 Dvwvy

1.2 7

1.3 Bwy
1.4 DvwY¥
1.5 Cc wy
Ve A wy
7 Dwvy
1.8 A vv

1.9 Bwy
110 D www

del |). Aaa

—.
113 Dw
1.14 A vw
115 Bvwwy

(15x 3) [45]

DEPARTMENT OF BASIC
EDUCATION

202 -05- 25

PRIVATE BAG X 110
PRETORIA 0001
i

{| PUBLIC EXAMINATION ©

7
i
{
7
|

### Page 3

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Physical Science/SG/P2/Natuur- en Skeikunde/SG/V2 3 DBE/2012

SCE/SSE — Memorandum

QUESTION 2/VRAAG 2

7)

2.2.1

_

2.3.1

2.3.2

The pressure of an enclosed (fixed) mass (amount) of gas~ is inversely
proportional” to its volume at constant temperature. “

Die druk van 'n ingeslote (vaste) massa (hoeveelheid) gas is omgekeerd 3
eweredig aan die volume daarvan by konstante temperatuur. (3)

Y correct variables (volume and pressure)/korrekte veranderlikes
(volume en druk)

vrelationship correct/verwantskap korrek
¥ constant temperature/konstante temperatuur

No marks for directly proportional

a: ti -
if indirectly proportional — 2/3 Geen punte vir direk eweredig

As indirek eweredig — 2/3

If symbols V andp—1i.g.: px a

As simbole Ven p- 1/3 bv.: pe a

Ty, ACCEPT/AANVAAR :

Vip1 _ Vob2
MOD Pp, a a
CIES If Vi; and V2 are substituted with

400 x 305 the same value/As V; en V2 met
= aoa dieselfde waarde vervang is

p, = 107,78 kPa (accept 108 kPa) ~ (4)

When temperature _is increased“ the (average) kinetic energy (or
velocity) of the gas molecules increases“, causing more (energetic)
collisions ~“ between gas molecules and the sides of the container, thus

increasing the pressure “

Wanneer die temperatuur verhoog, sal die (gemiddelde) kinetiese

energie (of snelheid) van die gasmolekules toeneem, lei tot meer

energieke botsings tussen die gasmolekule en die wande van houer, en 4)
sodoende die druk verhoog.

electrostatic/coulomb (forces)/ionic (bonds) “~~

elektrostatiese/coulomb(kragte)/ioniese (bindings) (2)
hydrogen bonding “~“  { " DEPARTMENT OF BASIC
waterstofbinding i EDUCATION (2)
[15]
212 -05- 25
PRIVATE BAG X 110 Oe
| PRETORIA 0001 >
-"BUBLIC EXAMINATIONS U/

‘

### Page 4

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Physical Science/SG/P2/Natuur- en Skeikunde/SG/V2 4 DBE/2012
SCE/SSE — Memorandum

QUESTION 3/VRAAG 3

3.1.1 sulphur ~~ (accept S) (1)
swawel (aanvaar S)

3.1.2 2Mg + SOz > S + 2MgO (Ignore/Ignoreer =)
reactants ¥ products »balancing (3)
reaktante produkte balansering

3.1.3. sulphur dioxide ~ (accept SO2)

swaweldioksied (aanvaar SO2) 1)

3.1.4 magnesium ~ (accept/aanvaar Mg) (1)
3.2 dehydrating (agent) “ ~

dehidreer(middel) (2)

8]

QUESTION 4/VRAAG 4

4.1.1 2NH,C2 + Ca(OH)2 > 2NH3 + CaCl, + 2H20

~ reactants » products “balancing 3
reaktante produkte balansering (3)
(Ignore/Ignoreer =)

ACCEPT/AANVAAR : No + 3H2 > 2NH3

4.1.2 downward displacement of air “~~
afwaartse verplasing van lug BGI 77-5

4.1.3 NH is less dense than air (accept: lighter than air) ~
NHs dissolves in water”

PUBLICEXA (9)
NHs is minder dig as lug (aanvaar ligter as lug)
NH los op in water

421 FeS ~ (1)

4.2.2 lead ethanoate (lead acetate) vv /loodetanoaat (/oodasetaat)
(CH3COO)2Pb

Accept/Aanvaar. a
lead nitrate/foodnitraat Accept formula

OR/OF: Aanvaar formule
Any soluble Zn- or copper(Il)-salt or
silver nitrate/enige oplosbare Zn- of

koper(ii)-sout of silwernitraat

### Page 5

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Physical Science/SG/P2/Natuur- en Skeikunde/SG/V2 5 DBE/2012
SCE/SSE ~ Memorandum
423 Fe* vv Accept iron(I{) ion (2)
Aanvaar yster(II)ioon
424 HS—oS + 2H*+2e vv OR/IOF S* = S + 2e
HS = S + 2H* + 2e (1/2)
S + 2H* + 2e “HS (1/2)
S + 2H" + 2e +4HS (0/2) (2)
S + 2H" + 2e =H.S (0/2)
4.25 HS+ 2Fe* > S +2Fe™ + 2H*
~“ reactants ¥ products ~ balancing Se
reaktante produkte balansering
QUESTION 5/ VRAAG 5
5.1.1 2HC2 + CaCO3 - CaCl, + COz + H20 (3)
Accept/Aanvaar: 2HC2 + CaCO3 — CaCl, + H2CO3
” reactants ” products v balancing
reaktante produkte balansering
ee 8 tt 7g (2)
5.1.3 120s “~~ (ORIOF between/tussen 90 and 120s OR/OF 2 min) (2)
5.1.4 Surface area (or equivalent) of marble chips decreases OR [HC{] (2)
decreases “”
Kontakopperviak (of ekwivalent) van die marmerstukkies verklein OF
[HC@] neem af.
The rate of gas volume formed decreases. “”
Die tempo waarteen gas volume vorm neem af met tyd.
5.1.5 (a) Increases/toeneem vv (2)
(b) stays the same/bly dieselfde “~~ (2)
je “ww
5.2.1 stays the same/bly dieselfde SEPARTMENT OF BASIC (2)
5.2.2 increases/foeneem “w r ERUCATION (2)
5.2.3 stays the same/bly dieselfde vw 2012 -05- 25 (2)
{ PRIVATE
5.24 increases/foeneem | RR (2)
7 © UBLIC EXAMINATIONS 21]

### Page 6

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Physical Science/SG/P2/Natuur- en Skeikunde/SG/V2 6 DBE/2012
SCE/SSE — Memorandum

QUESTION 6/VRAAG 6

6.1 HCL ~~ (hydrogen chloride/waterstofchloried) (Not hydrochloric acid/ (2)
Nie soutsuur nie)

©

= 0,2mol ~“ (3)
6.2.2 ge we e-
Vv MV
8
0,2 «7
=s oy
0,35 40 x 0,35
=0,57 mol.dm®? ~
= 0,57 mol.dm®? ~ (3)
Seman “? fa vy cave 2iv
Ch Vp Ny CoV
v
oY 1) 7
57 x1Y 0.57 1
Cs = 0,43 mol.dm? ~ (5)
“C3 = 0,43 mol.dm? ~
Na = Np }
7 v
Ratio of na: mp = 1:1 not Cava = ChVb
indicated, max ue CaX 20% = 67x15 >”
Verhouding na: Mp = 1:1 “Ca = 0,43 mol.dm? ~
nie aangedui, max %

[13]

DEPARTMENT OF BASIC
EDUCATION

a0t2 -05- 25

PRIVATE BAG X 110
PRETORIA 0001

PUBLIC EXAMINATIONS

### Page 7

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Physical Science/SG/P2/Natuur- en Skeikunde/SG/V2 i DBE/2012
SCE/SSE — Memorandum

QUESTION 7/VRAAG 7

7.1 loss of electrons vv (2)

verlies van elektrone

7.2.1 voltaic (galvanic)v ¥ (2)
voltaies (galvanies)

7.2.2 maintains electrical neutrality” v OR completes the circuitOR provides (2)
a path for ion flow
handhaaf elektriese neutraliteit ~~“ OF voltooi die stroombaan OF
voorsien ‘n pad vir ioonvioei

7.2.3 decreases Vv

neem af (2)
724 Cu* + 2e — Cuvv an :
Cu** + 2e 2 Cu (1/2)
Cu ~ Cu* + 2e (1/2)
Cu > Cu + 2e (0/2)
Cu = Cu* + 2e (0/2)
(2)
7.2.5 Cu v (copper/koper) (1)
7.2.6 reduction occurs at this electrode’ ¥ OR: Cu** gains electrons (2)
reduksie vind plaas by hierdie electrode “” OF: Cu** kry elektrone by.
7.2.7 Znto/naCu YY (Zn —- Cu) (zinc to copper) (2)
7.2.8 ZnvVv (zinc/sink) (2)

7.29 Z2n(s) + Cu*(aq)Y — Zn**(aq) + Cu(s) ¥ (ignore/ignoreer =) (2)
AcceptAanvaar Zn(s) + CuSO,(aq)“ - ZnSOz (aq) + Cu(s) ¥
(Phases not necessary/Fases nie nodig nie)

DEPARTMENT OF BASIC
EDUCATION

2012 -05- 25

PRIVATE BAG xX 410
PRETORIA 0001

PUBLIC EXAMINATIONS

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