AQA GCSE 9-1 higher combined science - chemistry p
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AQA GCSE 9-1 higher combined science - chemistry paper 2 All Answers 
Correct 
1. How do we measure the speed of a chemical reaction? 
Answer: We measure the rate of reaction by calculating the quantity of reactant used up or product 
formed over a specific period of time. 
2. What is the typical unit used to measure time when calculating the rate of reaction? 
Answer: We typically use seconds as the unit of time when measuring the rate of reaction. 
3. What is the usual unit used to meas...