1. What type of substance speeds up a chemical reaction but is chemically unchanged at the end of the reaction?

Question 1 of 15

2. What simple change could be made to a reaction to speed it up dramatically?

Question 2 of 15

3. Explain the effects of increasing the surface area of a solid on the rate of a reaction in terms of particle collision theory

Question 3 of 15

4. Give a simple reaction can be used to investigate the effect of changing surface area on the rate of reaction

Question 4 of 15

5. What happens to the rate of reaction if a catalyst is added?

Question 5 of 15

6. What is a catalyst?

Question 6 of 15

7. What happens if two particles collide with less than the activation energy

Question 7 of 15

8. Write the chemical equation for the decompostion of hydrogen peroxide, H₂O₂

Question 8 of 15

9. Explain the effects of increasing the concentration of solutions on the rate of a reaction in terms of particle collision theory

Question 9 of 15

10. Calcium carbonate reacts with an excess of hydrochloric acid in a flask. The mass of flask and contents decreases over time as the carbon dioxide escapes. This is shown on the graph. How would the graph look different if the reaction was done with a lower concentration of hydrochloric acid?

Question 10 of 15

11. Explain how a catalyst works

Question 11 of 15

12. Write the word equation for the decompostion of hydrogen peroxide, H₂O₂

Question 12 of 15

13. Give a simple reaction can be used to investigate the effect of changing concentration on the rate of reaction

Question 13 of 15

14. What is meant by the term activation energy?

Question 14 of 15

15. Calcium carbonate reacts with an excess of hydrochloric acid in a flask. The mass of flask and contents decreases over time as the carbon dioxide escapes. This is shown on the graph. How would the graph look different if the reaction was done at a higher temperature?

Question 15 of 15


 

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