Grade 10 Physical Sciences · Matter and Materials · Paper 2 (Chemistry)

Classification of Matter Grade 10

Real Classification of Matter past paper questions and answers from 2018 to 2024, with each memo split into the ticks examiners give. Try one, mark yourself, and see exactly which skill cost you marks.

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Question 1.1 · November 2019 · Paper 2 · National (DBE) · 2 marks

Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1 to 1.10) in the ANSWER BOOK, e.g. 1.11 E. Each question has only ONE correct answer.

1.1 Nitrogen gas is an example of a/an ...(2)

A element.
B compound.
C heterogeneous mixture.
D homogeneous mixture.

Work it out on paper first. Then mark yourself with the official memo, one tick at a time.

Classification of Matter skills

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4. Question 2.4.1 · November 2019 · Paper 2 · National (DBE) · 2 marks
Most elements found on Earth are metals. All metals have a metallic structure.
2.4 To prevent iron from rusting it is often mixed with other metals, e.g. stainless steel is a mixture of iron, chromium and nickel.

Answer the questions that follow.
2.4.1 Is stainless steel a HOMOGENEOUS or HETEROGENEOUS mixture? Give a reason for the answer.(2)
Show the memo (2 ticks)Memo
1. ✓
  HomogeneousHomogeneous
  1 mark · Classify substances and mixtures
2. ✓
  ReasonUniform composition / Separate particles cannot be distinguished. / All components are in the same phase.
  1 mark · Classify substances and mixtures
5. Question 1.1 · November 2024 · Paper 2 · Provincial · 2 marks
1.1 The process when a solid substance change directly to gaseous phase is called ...(2)
1. A evaporation.
2. B condensation.
3. C sublimation.
4. D boiling.
Show the memo (1 tick)Memo
1. ✓
  Correct optionSublimation is the change of a solid directly into a gas without passing through the liquid phase. Evaporation and boiling start from a liquid; condensation is gas to liquid.
  
  Answer: C
  2 marks · Define matter and atom terms
6. Question 2.1.5 · November 2024 · Paper 2 · Provincial · 2 marks
2.1 In the table below are different substances.

Use the following substances to answer the questions that follow.
2.1.5 Write down the chemical formula for substance F (Ammonium nitrate).(2)
Show the memo (1 tick)Memo
1. ✓
  Formula of ammonium nitrate $NH_{4} NO_{3}$
  2 marks · Write names and formulae of compounds
7. Question 1.1 · June 2024 · Paper 2 · Provincial · 2 marks
Various 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 1.5) in the ANSWER BOOK, e.g. 1.6 C.
1.1 The process where a solid substance change directly to a gas is called:(2)
1. A Evaporation
2. B Condensation
3. C Sublimation
4. D Melting
Show the memo (1 tick)Memo
1. ✓
  Correct optionSublimation is the change of a solid directly into a gas, without passing through the liquid phase. Evaporation is liquid to gas, condensation is gas to liquid and melting is solid to liquid.
  
  Answer: C
  2 marks · Define matter and atom terms
8. Question 2.1 · June 2024 · Paper 2 · Provincial · 2 marks
Study the list below that shows a variety of substances.

glass; bromine; copper wire; table salt; air; sodium chloride
2.1 Define a pure substance.(2)
Show the memo (1 tick)Memo
1. ✓
  Definition of a pure substanceA substance that cannot be separated into simpler components by physical methods.
  2 marks · Define matter and atom terms
9. Question 1.4 · November 2023 · Paper 2 · Provincial · 2 marks
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.
1.4 Metal M forms a nitrate with the formula $MNO_{3}$ . Which of the following formulae for compounds of M is NOT correct?(2)
1. A $M_{2} SO_{4}$
2. B $MC ℓ$
3. C $M(OH)_{2}$
4. D $M_{2} CO_{3}$
Show the memo (1 tick)Memo
1. ✓
  Correct optionNitrate is $NO_{3}^{-}$ , so in $MNO_{3}$ the metal ion is $M^{+}$ .
  $M^{+}$ with $SO_{4}^{2 -}$ gives $M_{2} SO_{4}$ (correct).
  $M^{+}$ with $C ℓ^{-}$ gives $MC ℓ$ (correct).
  $M^{+}$ with $OH^{-}$ gives $MOH$ , so $M(OH)_{2}$ is NOT correct.
  $M^{+}$ with $CO_{3}^{2 -}$ gives $M_{2} CO_{3}$ (correct).
  
  Answer: C
  2 marks · Write names and formulae of compounds
10. Question 4.1 · November 2023 · Paper 2 · Provincial · 2 marks
Strontium is best known for the brilliant reds it produces from its salts in fireworks and flares.

Strontium is an element on the Periodic Table in period 5 group 2.
The four isotopes of strontium have isotopic mass numbers of $84$ , $86$ , $87$ and $88$ and relative abundance of $0, 56%$ , $9, 86%$ , $7%$ and $82, 58%$ respectively.
4.1 Define the term isotope.(2)
Show the memo (1 tick)Memo
1. ✓
  Definition of isotopeAtoms of the same element, with the same number of protons but different number of neutrons.
  2 marks · Define matter and atom terms

Classification of Matter Grade 10 videos

Short lessons from South African teachers first. Videos load only when you tap play, to save your data.

Grade 10 Chemistry: Matter, Terms & Definitions | Learn Fast for Exams (CAPS)Learnida

Grade 10 Pure Substances vs Mixtures: Classification of matter ChemistryMiss Martins Maths and Science

4) Naming metal and non metal Gr 10Kevinmathscience

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