1. 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 twice the volume of the acid?

Question 1 of 15

2. Explain the effects of increasing the pressure of gases on the rate of a reaction in terms of particle collision theory

Question 2 of 15

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

Question 3 of 15

4. The reaction between magnesium and hydrochloric acid was used to measure the rate of reaction at different temperatures. Name 4 things which should be kept constant.

Question 4 of 15

5. What reactant is used to produce a sample of oxygen in the lab?

Question 5 of 15

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

Question 6 of 15

7. What happens to the rate of reaction if the concentration of solutions is INCREASED?

Question 7 of 15

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

Question 8 of 15

9. With how much energy must two particles collide for a reaction to occur?

Question 9 of 15

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

Question 10 of 15

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

Question 11 of 15

12. Explain how a catalyst works

Question 12 of 15

13. What is a catalyst?

Question 13 of 15

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

Question 14 of 15

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

Question 15 of 15


 

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