1. What happens to the rate of reaction if the pressure of gases is INCREASED?

Question 1 of 15

2. On a graph showing gas produced (vertical axis) over time (horizontal axis), how does the line tell us the rate of reaction?

Question 2 of 15

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

Question 3 of 15

4. What is a catalyst?

Question 4 of 15

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

Question 5 of 15

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

Question 6 of 15

7. What is meant by the term activation energy?

Question 7 of 15

8. Describe the laboratory preparation of oxygen from hydrogen peroxide

Question 8 of 15

9. Explain how a catalyst works

Question 9 of 15

10. Hydrochloric acid reacts with an excess of calcum carbonate in a flask. The volume of carbon dioxide given off is measured in a gas syringe. This is shown on the graph. How would the graph look different if the reaction was done with the same volume of acid, but with an acid which is twice as concentrated?

Question 10 of 15

11. Explain the effects of increasing the temperature on the rate of a reaction in terms of particle collision theory

Question 11 of 15

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

Question 12 of 15

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

Question 13 of 15

14. Large chips of calcium carbonate reacts with an excess of hydrochloric acid in a flask. The volume of carbon dioxide given off is measured in a gas syringe. This is shown on the graph. How would the graph look different if the reaction was done with a powdered calcium carbonate?

Question 14 of 15

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

Question 15 of 15