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

Question 1 of 15

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

Question 2 of 15

3. What is meant by the term exothermic?

Question 3 of 15

4. What does this symbol represent?

Question 4 of 15

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

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

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7. What does this diagram represent?

Question 7 of 15

8. The addition of water to anhydrous copper sulfate can be used to test for the presence of water. The reaction is reversible. What is the word equation? Describe the colour change.

Question 8 of 15

9. What is a catalyst?

Question 9 of 15

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

Question 10 of 15

11. What will happen to the equilibrium position when we decrease pressure? Give a reason for your prediction. A (g) + B (g) ⇋ C (g) (+∆H)

Question 11 of 15

12. 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 12 of 15

13. Describe the chemical test for water

Question 13 of 15

14. In the thermal decomposition of calcium carbonate, we might expect 50g of calcium carbonate to produce 28g of calcium oxide. If instead only 24g of calcium oxide is produced, what is the percentage yield?

Question 14 of 15

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

Question 15 of 15