Unit 1: Structure 1: Models of the Particulate Nature of Matter
Topic 1.1: Introduction to the Particulate Nature of Matter Questions
Practice 6 exam-style questions for IB Chemistry Topic 1.1. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Describe2 marks
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Describe how an element differs from a compound. [2]
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Unlock Question2Calculate2 marks
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In a chromatography experiment, a spot of food colouring travels 5.4 cm from the start line while the solvent front travels 12.0 cm in the same time.
Calculate the Rf value of the food colouring. [2]
Calculate the Rf value of the food colouring. [2]
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Unlock Question3Calculate1 mark
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A student records the temperature of a water bath as 35 °C.
Calculate this temperature in kelvin.
Calculate this temperature in kelvin.
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Unlock Question4Distinguish2 marks
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Distinguish between a homogeneous and a heterogeneous mixture, giving one example of each. [2]
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Unlock Question5Outline4 marks
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A solid mixture contains powdered chalk (insoluble in water), potassium chloride (soluble in water) and small steel paper clips.
Outline a sequence of steps to separate and recover all three components. [4]
Outline a sequence of steps to separate and recover all three components. [4]
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Unlock Question6Explain4 marks
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Using the kinetic molecular theory, state and explain two properties of a gas. [4]
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