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IB Chemistry SL 1.1 Introduction to the Particulate Nature of Matter Questions

Practise IB Chemistry SL 1.1 with evidence-led questions on particles, elements, compounds, mixtures and kinetic molecular theory.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Classify elements, compounds and mixtures, then select physical separation methods from component properties.
  • Use particle models and state symbols to explain state changes and relate Kelvin temperature to particle kinetic energy.

Covered syllabus points

1.1.1—Elements, compounds, and mixtures1.1.2—Kinetic molecular theory1.1.3—Temperature and kinetic energy

Question 1

[Maximum number: 1]

Which methods for separating the given mixtures into their components are correct?

Table for Question 1 — IB Chemistry SL
A

I and II only

B

I and III only

C

II and III only

D

I, II and III

Question 2

[Maximum number: 1]

What is the name of this change of state?

CO2( g)→CO2( s)\mathrm{CO}_{2}(\mathrm{~g}) \rightarrow \mathrm{CO}_{2}(\mathrm{~s})
A

Condensation

B

Deposition

C

Sublimation

D

Freezing

Question 3

[Maximum number: 1]

What happens to the average kinetic energy, KE , of the particles in a gas when the absolute temperature is doubled?
KE=12mv2\mathrm{KE}=\frac{1}{2} \mathrm{mv}^{2}

A

Increases by a factor of 2

B

Decreases by a factor of 2

C

Increases by a factor of 4

D

Decreases by a factor of 4

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