Catalysts (AQA GCSE Chemistry): Flashcards
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Practise the cards
11 cards from this deck
Definition of a catalyst
Definition of a catalyst
Substance that participates in reactions but remains unchanged at the end
Fate of catalyst after reaction
Fate of catalyst after reaction
Regenerated and can be reused
Catalysts in balanced equations?
Catalysts in balanced equations?
Not included
Main role of catalysts
Main role of catalysts
Speed up chemical reactions
How catalysts work
How catalysts work
Alternative pathway with lower activation energy
What is activation energy?
What is activation energy?
Minimum energy particles need for reaction to occur
Effect of catalyst on activation energy
Effect of catalyst on activation energy
Lowers it
Result of lower activation energy
Result of lower activation energy
Higher frequency of successful collisions
Why use catalysts in industry?
Why use catalysts in industry?
Accelerate reactions too slow for manufacturing
Biological catalysts
Biological catalysts
Enzymes
Examples of enzyme functions
Examples of enzyme functions
Digestion, respiration, DNA replication