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ZIMSEC O-Level Chemistry

7.1.2Matter

Matter in ZIMSEC O-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Topic80 practice questions4 lessons
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Lessons

  • Diffusion

    25 min

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  • States of matter and the kinetic particle theory

    25 min

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  • Heating and cooling curves

    25 min

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  • Purity: melting points and boiling points

    25 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Exam style

Matter: sample question

1 mark

The heating curve of a pure substance has two flat sections, one at 17 ∘C17\ ^\circ\text{C} and one at 118 ∘C118\ ^\circ\text{C}. What is the boiling point of the substance?

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