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GCSE Combined Science · key term
A measure of how quickly reactants are used up or products are formed.
Used by AQA and Edexcel
Specification 4.2.2.1, 5.6.1.1, 5.6.1.2 · Paper 1, Paper 4
The amount of reactant used up or product formed per unit time.
Specification Rates of reaction · Paper 3, Paper 4
A measure of how quickly reactants are used up or products are formed, expressed as a change in quantity per unit time.
Revise: Rates of reactionThe rate of reaction describes how quickly reactants are used up or products are formed. A faster reaction produces more product in the same time, or takes less time to produce a particular amount.
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