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Summary Physical science A+ guide

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Guide to become an A+ student in grade 10 physical science

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Downloaded from Stanmorephysics.com




PROVINCIAL EXAMINATION
NOVEMBER 2023
GRADE 10

PHYSICAL SCIENCES: CHEMISTRY

PAPER 2




TIME: 2 hours

MARKS: 100


10 pages + 2 data sheets

, Downloaded from Stanmorephysics.com



INSTRUCTION AND INFORMATION

1. Write your name in the appropriate space on the ANSWER BOOK.

2. This question paper consists of SEVEN questions. Answer ALL the questions.

3. Start EACH question on a NEW page in the ANSWER BOOK.

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

5. Write neatly and legibly.

6. You may use a non-programmable calculator.

7. You may use appropriate mathematical instruments.

8. You are advised to use the DATA SHEETS that are attached.

9. Show ALL formulae and substitutions in ALL calculations.

10. Round-off your FINAL numerical answers to a minimum of TWO decimal
places.

, Downloaded from Stanmorephysics.com


QUESTION 1: MULTIPLE-CHOICE QUESTIONS

Four options are provided as possible answers to the following questions. Each question
has only ONE correct answer. Choose the answer and write only the letter (A – D) next
to the question numbers (1.1 to 1.9) in the ANSWER BOOK, e.g. 1.10 D.

1.1 Which of the following solids consist of a lattice of positive ions in a “sea” of
delocalised electrons?

A Ice
B Iodine
C Diamond
D Potassium (2)

1.2 The chemical properties of an element are determined by the number and
arrangement of the element’s …

A atoms.
B protons.
C electrons.
D ions. (2)

1.3 An atom X forms an ion X+. The atom X and ion X+ have the same …

A number of electrons.
B atomic radius.
C ionisation energy.
D number of protons. (2)

1.4 Metal M forms a nitrate with the formula MNO3. Which of the following formulae
for compounds of M is NOT correct?

A M2SO4
B MCℓ
C M(OH)2
D M2CO3 (2)

1.5 Which of the following represents the electron configuration of an alkaline-
metal ion?

A 1s2
B 1s2 2s2
C 1s2 2s2 2p5
D 1s2 2s2 2p6 3s1 (2)

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