# Physical Sciences Grade 10 P2 September Test 2016 QP & Memo

> Grade 10 Physical Sciences Paper 2 question paper and memo from the September Test 2016, 10 pages. Read online or get the free PDF download.

- Page: https://www.hlayiso.com/library/phy-p2-sep-qp-memo-2016-gr10/4d64fbdc-0c03-4f35-b563-eac872570065
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 10
- Document type: Question paper and memo
- Year: 2016
- Exam period: September Test
- Paper: 2
- Curriculum: CAPS
- Pages: 10

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## About this document

Physical Sciences · Grade 10 · September Test · 2016. Question paper and memorandum, 10 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

Downloaded from hlayiso.com
                testpapers.co.za

### Page 2

Physical Sciences pDown loaded fram h layisO.GQM, 216 Common Test
2

INSTRUCTIONS AND INFORMATION

1.

Answer ALL the questions.
You may use a non-programmable calculator.
You may use appropriate mathematical instruments.

Number the answers correctly according to the numbering system used in this question
paper.

A periodic table is attached for your use.
Give brief motivations, discussions, et cetera where required.

Round off your final numerical answers to a minimum of TWO decimal places.

Copyright reserved Please turn over

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Physical Sciences P:

own loaded fram h layiso ‘QM. 2016 Common Test
3

QUESTION 1: MULTIPLE CHOICE

Four possible options are provided as answers. Choose the correct option by writing
only the letter next to the question number (1.1 — 1.3).

1.1 A substance that increases the electrical conductivity of water is called a/an

A solvent
B precipitate

Cc electrolyte

D non-polar liquid (2)

1.2 2 moles of oxygen gas react with hydrogen to form water. How many moles of
hydrogen are required for the complete reaction?

; A 2

B 4

Cc 6

D 8 (2)
1.3. Which one of the following represents one mole? The number of:

A atoms in 23 g of sodium

B protons in 1g of hydrogen gas (H2)

Cc molecules in 34 g ammonia gas (NH3)

D atoms in 22 g of carbon dioxide (CO2) (2)

[6]

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Physical Sciences PD OWNIOaded fram hlayiSO.GRM,-2016 common Test * »
4

QUESTION 2

2.1 A learner wishes to test the electrical conductivity of potassium chloride (KCI).
He sets up the apparatus as shown below.

APPARATUS A APPARATUS B
\
iJ
@
i, ~
T~ Potassium Chloride
Potassium Chloride Solution (aqueous)
Crystal

2.1.1 Ammeter A; reads zero and ammeter Az has a reading greater than zero.
Explain why A; reads zero and A; reads greater than zero, (2)

A solution of silver nitrate (AgNOs) is added to apparatus B.
APPARATUS B

n

1 Potassium Chloride
Solution

2.1.2 Describe what will be observed in the solution. (2)

2.1.3 How will the reading on ammeter Az be affected.
(Choose from INCREASE, DECREASE or REMAIN THE SAME).

Explain the answer. (3)
2.2 A learner is given a bottle of solution and suspects that it is a sulphate. ( \
2.2.1 Describe a positive test to prove that the solution is a sulphate. (2)

2.2.2 Howcan the learner be sure that the precipitate formed is not a
carbonate? (2)

2.3 Identify the type of reaction represented by the chemical equations given

below.

Choose from ACID ~ BASE REACTION, PRECIPITATION REACTION or

REDOX REACTION.

2.3.1 Mg(OH)z + H2SO, —>» MgSO, + 2H20 (1)
2.3.2 S+O, —» SO» (1)

[13]

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Physical Sciences pDown loaded fram h layiso.com 2016 Common Test

QUESTION 3

3.1

Copyright reserved

You are given 25g of sodium sulphate (Na2SOu).
3.1.1. Calculate the number of moles of sodium sulphate that you have.

3.1.2 Calculate the number sodium atoms present in 25g of sodium

sulphate.
3.2 Determine the mass of iron (Fe) present in 68g of iron oxide (Fe,Os).
3.3 Asubstance contains 40% carbon, 6,67% hydrogen and 53,33% oxygen by
mass. ;
3.3.1 Determine the empirical formula of the given substance.
3.3.2 If the molecular mass of the substance is 60 g.mol’, determine its
) molecular (true) formula.
QUESTION 4
4.1 32g of ammonium nitrate (NH4NOs) is added to sufficient water to make
250 cm’ of solution.
4.1.1 Define concentration.
4.1.2 Calculate the cancentration of the solution.
~ 4.2 Solid potassium chlorate (KCIOs) is heated to produce potassium chloride

and oxygen gas according to the chemical equation given below.
2KCIO3) —> 2KCI + 302

4.2.1 Calculate the mass of potassium chlorate that must be used to
produce 160g of potassium chloride at STP,

4.2.2 Calculate the volume of oxygen gas produced at STP if 200g of
potassium chloride is produced.

TOTAL MARKS:

(3)

(4)

(2)
[17]

(2)

(4)

(4)
[14]

[50]

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Physical Sciences Downloaded frean hlayiso.cam. 2016 Common Test * ~

DATA FOR PHYSICAL SCIENCES GRADE 10
PAPER 2 (CHEMISTRY)

TABLE 1: PHYSICAL CONSTANTS

Standard pressure pr 1,013 x 10° Pa
Molar gas volume at STP Vin 22,4 dm*-mol™
Standard temperature Te 273K

Charge on electron e -1,6x 10°C
Avagadro's constant Na 6,02 x 10” mol!

TABLE 2: FORMULAE

N

_m nee
"= M Na (
V i

- - mM | n= >-

cy OR Cc MV Vin
(:

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