GCSE Chemistry – Rates of reaction

Last updated: 24/07/2020

OCR Gateway GCSE Science – Combined science foundation Controlling reactions GCSE Chemistry – Rates of reaction

Learning Objectives

-I can describe practical methods for investigating the rate of a reaction

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Question 1 of 25

1. Question
What is the definition of rate of reaction?
- How fast reactants turn into products
- How fast products turn into reactants
- The concentration of the reactants
- The concentration of the products
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Question 2 of 25

2. Question
What is the equation to work out the mean rate of reaction?
- quantity of reactant used / time
- time / quantity of reactant used
- time x quantity of reactant used
- quantity of reactant used + time
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Question 3 of 25

3. Question
What is the equation to work out the mean rate of reaction?
- quantity of product formed / time
- time / quantity of product formed
- time x quantity of product formed
- quantity of product formed / time
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Question 4 of 25

4. Question
How can the rate of reaction be found?
- Measuring the production of a precipitate
- Measuring a change in concentration
- Measuring a change in pressure
- Measuring the change in time
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Question 5 of 25

5. Question
How can the rate of reaction be found?
- Measuring a change in mass
- Measuring a change in concentration
- Measuring a change in pressure
- Measuring the change in time
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Question 6 of 25

6. Question
How can the rate of reaction be found?
- Measuring a change in the volume of gas released
- Measuring a change in concentration
- Measuring a change in pressure
- Measuring the change in time
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Question 7 of 25

7. Question
What are the units for the rate of reaction?
- mol/s
- s/mol
- cm/g
- g/cm
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Question 8 of 25

8. Question
What are the units for the rate of reaction?
- g/s
- s/g
- cm/g
- g/cm
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Question 9 of 25

9. Question
What are the units for the rate of reaction?
- $cm^3/s$
- $g/cm$
- $cm/g$
- $s/cm^3$
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Question 10 of 25

10. Question
How can the change in mass be measured?
- Balance
- Syringe
- X drawn on a beaker
- Colorimeter
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Question 11 of 25

11. Question
What should be drawn after measuring the rate of reaction via a change of mass?
- Line graph
- Pie chart
- Bar graph
- Diagram
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Question 12 of 25

12. Question
When drawing a graph to show the measuring of the rate of a reaction via a change in mass, what will be your independent variable?
- Time
- Mass
- Volume of reactant
- Energy
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Question 13 of 25

13. Question
When drawing a graph to show the measuring of the rate of a reaction via a change in mass, what will be your dependent variable?
- Mass
- Time
- Volume of reactant
- Energy
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Question 14 of 25

14. Question
How can the change in volume of a gas be measured?
- Syringe
- Balance
- X drawn on a beaker
- Colorimeter
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Question 15 of 25

15. Question
What should be drawn after measuring the rate of reaction via a change in the volume of gas released?
- Line graph
- Pie chart
- Bar graph
- Diagram
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Question 16 of 25

16. Question
When drawing a graph to show the measuring of the rate of a reaction via a change in volume released, what will be your independent variable?
- Time
- Volume of gas produced
- Concentration
- Energy
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Question 17 of 25

17. Question
When drawing a graph to show the measuring of the rate of a reaction via a change in volume released, what will be your dependent variable?
- Volume of gas produced
- Time
- Concentration
- Energy
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Question 18 of 25

18. Question
How can the production of a precipitate be measured?
- X drawn on a beaker
- Balance
- Syringe
- Colorimeter
Correct

Incorrect
Question 19 of 25

19. Question
What should be drawn after measuring the rate of reaction via a precipitate formation?
- Line graph
- Pie chart
- Bar graph
- Diagram
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Question 20 of 25

20. Question
When drawing a graph to show the measuring of the rate of a reaction via a precipitate formation, what will be your independent variable?
- Time
- Light transmitted
- Amount of precipitate formed
- Energy
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Question 21 of 25

21. Question
When drawing a graph to show the measuring of the rate of a reaction via a precipitate formation, what will be your dependent variable?
- Light transmitted
- Time
- Amount of precipitate formed
- Energy
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Question 22 of 25

22. Question
What should be added to a graph drawn to show your results?
- Line of best fit
- Shading
- Bars
- Colour
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Question 23 of 25

23. Question
Describe the relationship between the steepness of one of these graphs and the rate of reaction.
- The steeper the graph the faster the rate of reaction
- The steeper the graph the slower the rate of reaction
- The more gentle the graph the faster the rate of reaction
- No relationship
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Question 24 of 25

24. Question
How can the quantity of a reactant or product be measured?
- Change in mass
- Change in pressure
- Change in time
- Cannot be measured
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Question 25 of 25

25. Question
How can the quantity of a reactant or product be measured?
- Chane in volume of gas
- Change in pressure
- Change in time
- Cannot be measured
Correct

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