Catalysts (Edexcel GCSE Chemistry): Flashcards
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12 cards from this deck
What is a catalyst?
What is a catalyst?
Substance that speeds up reaction but remains unchanged
Are catalysts consumed in reactions?
Are catalysts consumed in reactions?
No, they're regenerated and reused
Are catalysts included in balanced equations?
Are catalysts included in balanced equations?
No, not included in overall balanced equations
What is the main role of catalysts?
What is the main role of catalysts?
Speed up chemical reactions
How do catalysts work?
How do catalysts work?
Provide alternative pathway with lower activation energy
What is activation energy?
What is activation energy?
Minimum energy for particles to react
Effect of lowering activation energy?
Effect of lowering activation energy?
More particles have enough energy to react
Result of catalyst use on collisions?
Result of catalyst use on collisions?
Higher frequency of successful collisions
Why are catalysts used in industry?
Why are catalysts used in industry?
Accelerate slow reactions for manufacturing
What are biological catalysts called?
What are biological catalysts called?
Enzymes
What is the role of enzymes?
What is the role of enzymes?
Facilitate biochemical reactions in living organisms
What processes involve enzymes?
What processes involve enzymes?
Examples: digestion, respiration, DNA replication