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Recognize that a catalyst speeds up a reaction and remains unchanged after the reaction is complete.

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Cambridge IGCSE ChemistryChemical reactionsCore content

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Recognize that a catalyst speeds up a reaction and remains unchanged after the reaction is complete

This point belongs to Rate of reaction, especially Rate of reaction outcomes.
You need to be able to recognize that a catalyst speeds up a reaction and remains unchanged after the reaction is complete.
The key ideas to know are State.
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Key concepts

State

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This objective helps connect Rate of reaction outcomes to exam-style questions, flashcards, and revision notes for Rate of reaction.

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Paper 3 structured question: Rate of reaction

Paper 3Theory (Core)1 marks

Description

Catalysts in Industry

Catalysts are used in various chemical reactions to increase the rate of production. They are not consumed in the reaction and can be reused multiple times.

a
State the role of a catalyst in a chemical reaction.
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[1]

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Related learning objectives

Explain how the rate of a reaction is influenced by factors such as the concentration of solutions, pressure of gases, surface area of solids, temperature, and the presence of a catalyst or enzyme.
Rate of reaction outcomes
Outline practical approaches to measure the rate of a reaction, such as monitoring changes in mass or gas production.
Rate of reaction outcomes
Analyze data, including graphical representations, from experiments related to the rate of reaction.
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Explain collision theory by discussing factors such as particle density, collision frequency, kinetic energy, and activation energy.
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Discuss how factors like concentration, pressure, surface area, temperature, and catalysts affect reaction rates, using collision theory as a basis.
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