1. Explain how a catalyst works

Question 1 of 15

2. State the catalyst used for making oxygen through the decomposition of hydrogen peroxide

Question 2 of 15

3. 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 3 of 15

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

Question 4 of 15

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

Question 5 of 15

6. What happens to the rate of reaction if the temperature is INCREASED?

Question 6 of 15

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

Question 7 of 15

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

Question 8 of 15

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

Question 9 of 15

10. 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 10 of 15

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

Question 11 of 15

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

Question 12 of 15

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

Question 13 of 15

14. What is a catalyst?

Question 14 of 15

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

Question 15 of 15


 

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