1. What is a catalyst?

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2. What does this symbol represent?

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3. 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?

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4. What will happen to the equilibrium position when we add a catalyst? Give a reason for your prediction. 2A (s) + B (g) ⇋ C (g) + D (g) (-∆H)

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

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

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

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8. What does this diagram represent?

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

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10. What is meant by the term exothermic?

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11. 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.

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12. State the expression for calculating % yield.

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

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

Question 15 of 15