Catalysts (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the key property of catalysts?
What is the key property of catalysts?
They don't get used up
How do catalysts speed up reactions?
How do catalysts speed up reactions?
They lower activation energy
What do catalysts provide for reactions?
What do catalysts provide for reactions?
An alternative pathway
With a catalyst, what happens to collisions?
With a catalyst, what happens to collisions?
More are successful
Are catalysts specific to certain reactions?
Are catalysts specific to certain reactions?
Yes, different reactions need different ones
What are biological catalysts called?
What are biological catalysts called?
Enzymes
What catalyst speeds up hydrogen peroxide decomposition?
What catalyst speeds up hydrogen peroxide decomposition?
Manganese(IV) oxide
In the hydrogen peroxide example, what happens to ?
In the hydrogen peroxide example, what happens to ?
It remains at the end
What is the first step in testing for a catalyst?
What is the first step in testing for a catalyst?
Weigh the solid
After the reaction, what should you do to the solid?
After the reaction, what should you do to the solid?
Filter and dry it
What proves a substance is a catalyst?
What proves a substance is a catalyst?
Its mass stays the same
What does lower activation energy lead to?
What does lower activation energy lead to?
Faster reactions