# Physical Sciences Grade 12 Paper 2 Limpopo June 2025 Memo

> Grade 12 Physical Sciences Paper 2 memorandum from the Limpopo June Exam 2025, 8 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/physical-sciences-physics-grade-12-nsc-memo-p2-may-june-2025-limpopo/f2cd1409-6db0-4f23-b078-ce944b93c2b5
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 12
- Document type: Memorandum
- Year: 2025
- Exam period: Limpopo June Exam
- Paper: 2
- Curriculum: CAPS
- Pages: 8

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## About this document

Physical Sciences · Grade 12 · Limpopo June Exam · 2025. Memorandum, 8 pages. Read online or download the PDF.

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

## Document text

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### Page 1

DoE/June 2025
“NSC

pik, LIMPOPO

PROVINCIAL GOVERNMENT
REPUBLIC OF SOUTH AFRICA

DEPARTMENT OF EDUCATION

NATIONAL
SENIOR CERTIFICATE

PHYSICAL SCIENCES (PHYSICS)
PAPER 2: MAY - JUNE 2025

MARKS: 150
TIME: 3 Hours

This Marking Guidelines consist of 8 pages including the cover page

Copyright reserved Please turn over

### Page 2

QUESTION 1
1100 AY
1.2 Cvv
1.3 Cvy
1.4 _ are
ALS BYY
1.6 Byy
1.7 ore
1.8 Cv¥v
1.9 Av’
1.10 Byy
QUESTION 2
2.1
21.1 Fr
212 CH
2.1.3 AY
2.1.4 FY
2.1.5 Av and HY
2.16 Gv
21.7 EF
2:2
2.2.1. 2-methylv butanev
2.2.2 methyl”propan-2-olv v
2.2.3 2-bromov butanalv

Copyright reserved

DoE/June 2025

Notes:

1. Methyl identifiedy
2. Propanolv
3. Whole structure correctv’

Please turn over

(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
[20]

(1)
(1)
(1)
(1)
(2)
(1)
(1)

(2)
(3)

(2)

### Page 3

DoE/June 2025

2.2.4  3,3-dimethylv pent-1-ynev Vv

Notes:
1. dimethyl identifiedv
2. Pentynev
3. Whole structure correctv (3)
Zid
2.3.1 i H ,
HOY jaar, Notes:
Cc
Fi \ \ 1. Correct functional groupy
2. Whole structure correctv (2)
23:2 HH 8
woet-€ v Notes:
hu 2 1. Correct functional groupY
4 2. Whole structure correctY (2)
2.4
2.4.1 CsaHeQ2v” (1)
2.4.2 fe)
i tiv
-C—C—C—
| | (1)
2.4.3 CHsCOOHv v/(Accept: CHs - COOH) (2)
2.4.4. Methanolv (1)
2.4.5 Formylv (group)/Accept: carbonyl (1)
2.4.6 Alkynev (1)
[29]
QUESTION 3
3.1
3.1.1. The temperature at which the vapour pressure is equal to the atmospheric
pressure.” ¥ (2 or 0) (2)
3.1.2 Thermometerv /Accept: Bunsen burner/heat source/flame (1)
3.2
3.2.1. Molar mass”/molecular size/chain length/number of C atoms/surface
ined (1)

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### Page 4

DoE/June 2025

3.2.2 Boiling point” (1)
3.2.3 Relationship between dependant and independent variables:

As molar mass/molecular size/chain length increasesv the boiling point
also increases. Vv

OR

4 molec msssinoecusr xathnn Inf decesser” the ella okt

(DIRECTLY PROPORTIONAL NOT ACCEPTED) (2)

3.3 London forcesv (2)
3.4 Ev (1)
3.5 E has a smaller surface area/shorter chain length/more sphericalv than D
therefore the intermolecular forces in E are weaker” and need less (3)
energy to overcome than those in D. ¥
[13]
QUESTION 4
4.1 Secondary.” The carbon atom bonded to the halogen/chlorine, is bonded (3)
to two other carbon atoms.v¥
4.2 Substitution/hydrolysis Vv” (2)
4.3 CH3aCH(OH)CH2CH3” — CHsCHCHCHs + H2Ov (” balancing)
(3)
44 Dilute strong base/Dilute NaOH v/Excess water/moderate heat/ethanol as
solver
(2)
4.5 Suiphuric acidy
H2SO4v (2)
4.6 Hydrohalogenation/hydrochlorinationY (1)
[13]

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### Page 5

QUESTION 5
5.1

5.2
5.3

5.4

5.5

5.6

5.7

5.8

5.9

DoE/June 2025

Reactant that is totally consumed when a chemical reaction is
completed. v v

(2)
CaCOs is the limiting reagentv’ (1)
N(caco3) = rd
= wav
(3)
= 0,004molv
(1)
0,004molY
n
Rate = rad
= COON
10
= 0,0004mol/sv
(3)

co, formed = Ncaco,)Teae 0,004molvY

= 0,896dm3v

When concentration is increased, there are more reactant particlesY in
the same volume, the number of effective collisions per unit time

increase, v V increase in the rate of reaction. (3)
Decreases.” When granules are used, the surface area decreasesY and

therefore the number of effective collisions per unit time decreases. @)
The reaction is complete/CaCOs has been used up.¥ (1)

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### Page 6

DoE/June 2025

5.10
5.10.1 Cv (1)
5.10.2 Dv (1)

5.10.3 The average kinetic energy is the samev as for graph A showing that
the temperature is the same. The area under the graph D is @)
double/largerY showing that the quantity of nitrogen gas is larger. v

[26]
QUESTION 6
6.1 OPTION 4 2802 OQ2 280s
Initial amount(mol) | x 1,25v 0 v (ratio)
Change | 1,0 0,5 1,0
Equilibrium amount x-1,0 0,75 1,0 v
Equilibrium conc. x—1,0 1,5
05 v (+ 0,5)
OPTION 2
[- _ | 2802 Oz 2S03
Initial amount(mol) <3 y
05 2,5 0 ¥(+0,5)
Change -2 -1 +2 ¥ (ratio)
| Equilibrium amount | _*_ _ 5 15 2 -
0,5
_ _[s03}?
Ke = Sosttion
42,67 = — Fy
aty'as)
x = 1,125(mol)v (8)
6.2
6.2.1 Concentration of O2 increased.v v (2)
6.2.2 Pressure was increased.v v (2)
6.2.3. Increase in pressure favours the reaction that produces less number of
moles.v The forward reaction was favoured.v As the concentrations of the
reactants decrease,” the concentration of the products increases.v
(4)

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### Page 7

DoE/June 2025

6.3
6.3.1. System that is isolated from its surroundings.vv/ A system that does not
. (2)
6.3.2 Turns yellow.” (1)
6.3.3 Sodium hydroxide reacts with H* and reduces their concentration.v The
forward reaction is favoured.v The concentration of chromate ions
increases.’ (3)
[22]
QUESTION 7
7.1 An acid is a proton (H* ion) donor.v ¥ (2)
7.2
7.2.1. HCfLand Civ
H3O* and H20 ¥ (2)
7.2.2 Substance that can either act as acid or base.vv (2)
7.2.3 H20Y (1)
7.2.4 HsO*v (1)
7.2.5 OPTION1
c= ay
= 3,65
(36,5)(0,2)
=0.1 mol
5
a 3)
20.5 mol.dm?

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### Page 8

7.3

7.2.6

7.3.1

7.3.2

DoE/June 2025

(0)

NaOH + HNOsv — NaNO; + H2OvY (reactants, products, balancing) (3)

Number of moles of MgCo»/
m

n= ET RATE ACRES
= Ley
84

= 0,02mol sf
Number of moles of ve which reacted with MgCO3

n = 2(0,02)”
= 0,04mol
Let the initial concentfation of the acid be x
n
c= Vv
Vv

n
0,039
«n= 0,039x
n(HNO); in 12cm? = 0,012xv
Ratio HNOs:NaGH = 1 : 1
«. n(NaOH) in A5cm? = 0,012xv

3) = 0,039x — 0,02xv
= 0,019x
9x = 0,04
x=2,11
03] = 2,11moldm-3v (0)

[27]

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