Catalysts (AQA GCSE Chemistry): Flashcards
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Practise the cards
11 cards from this deck
What do catalysts do to reactions?
What do catalysts do to reactions?
Speed them up
Key property of catalysts
Key property of catalysts
Don't get used up/remain unchanged
How catalysts speed up reactions
How catalysts speed up reactions
Lower the activation energy
What catalysts provide
What catalysts provide
Alternative pathway with lower activation energy
Catalyst specificity
Catalyst specificity
Different reactions need different catalysts
What are biological catalysts called?
What are biological catalysts called?
Enzymes
decomposition equation
decomposition equation
Catalyst for breakdown
Catalyst for breakdown
Manganese(IV) oxide (MnO₂)
Testing for catalyst method
Testing for catalyst method
Weigh before & after - mass should stay same
Energy particles need with catalyst
Energy particles need with catalyst
Less energy than without catalyst
Why lower activation energy increases rate
Why lower activation energy increases rate
More collisions are successful