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IB Chemistry HL 1.1.1 Elements Compounds and Mixtures Questions

Analyse composition and phase behaviour, then justify distillation, extraction or other physical separation methods from measurable property differences.

Syllabus
First assessment 2025
Course
Chemistry HL
Level
HL

Exam points

  • Classify elements, compounds and mixtures by bonding, fixed-ratio composition and retention of component properties, including dispersed systems.
  • Distinguish homogeneous and heterogeneous mixtures, solutions, emulsions and immiscible phases from diagrams or component behaviour.
  • Select and explain physical separation methods—fractional distillation, solvent extraction and staged purification—using boiling point, polarity or solubility differences.

IB Chemistry HL 1.1.1 Elements Compounds and Mixtures Questions question 1

[Maximum number: 2]

Iron(II) sulfide can be produced by heating powdered iron and sulfur together.

Describe the difference between an element and a compound.

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