1. What does this diagram represent?

Question 1 of 15

2. What does this symbol represent?

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3. What is meant by the term activation energy?

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

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5. What will happen to the equilibrium position when the temperature is increased? Give a reason for your prediction. CH₄(g) + H₂O(g) ⇋ CO(g) + 3H₂(g) ΔH = +210 kJ mol⁻1

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6. Describe the chemical test for water

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7. State two features of a reaction that is in dynamic equilibrium

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8. What is meant by the term exothermic?

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

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10. What name is given to the movement of gases?

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

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12. For a reversible reaction to reach dynamic equilibria, where must the reaction take place?

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13. Ammonia and hydrogen chloride react together in a reversible reaction to produce a white solid. What are the word and symbol equations?

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14. What is a catalyst?

Question 14 of 15

15. 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 15 of 15