Catalysts (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens to a catalyst at the end of a chemical reaction?
What happens to a catalyst at the end of a chemical reaction?
It remains unchanged
Why can catalysts be reused in multiple reaction cycles?
Why can catalysts be reused in multiple reaction cycles?
They are typically regenerated
Are catalysts included in the overall balanced chemical equation?
Are catalysts included in the overall balanced chemical equation?
No, they are not included
What is the main role of a catalyst in a chemical reaction?
What is the main role of a catalyst in a chemical reaction?
Speed up the reaction
How do catalysts speed up chemical reactions?
How do catalysts speed up chemical reactions?
Provide an alternative pathway
What effect do catalysts have on activation energy?
What effect do catalysts have on activation energy?
Lower it
What is activation energy?
What is activation energy?
Minimum energy for reaction to occur
How does lower activation energy increase reaction rate?
How does lower activation energy increase reaction rate?
Higher frequency of successful collisions
Why are catalysts widely used in the chemical industry?
Why are catalysts widely used in the chemical industry?
Accelerate slow reactions
What are enzymes?
What are enzymes?
Biological catalysts