1. Why a catalyst does not affect the position of equilibrium in a reversible reaction?

Question 1 of 15

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

Question 2 of 15

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

Question 3 of 15

4. What will happen to the rate of reaction when a catalyst is added? A (g) + B (g) ⇋ C (g) + D (g) (+∆H)

Question 4 of 15

5. What does this symbol represent?

Question 5 of 15

6. Write a chemical equation for the reaction between hydrogen chloride and ammonia

Question 6 of 15

7. One feature of dynamic equilibrium is that the rate of the forward reaction is equal to the rate of the backward reaction. What is the other feature?

Question 7 of 15

8. In a sealed container, a reversible reaction can reach a state of ______________________________

Question 8 of 15

9. What does this diagram represent?

Question 9 of 15

10. State the expression for calculating % yield.

Question 10 of 15

11. What colour is anhydrous copper (II) sulfate?

Question 11 of 15

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

Question 12 of 15

13. Explain why experimental values of enthalpy change differ from theoretical values

Question 13 of 15

14. State and explain how increasing temperature affects the diffusion of a gas

Question 14 of 15

15. What is meant by the term exothermic?

Question 15 of 15