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Activity 20.2 Investigating redox reactions of aqueous chlorine

Activity 20.2 Investigating redox reactions of aqueous chlorine Reference in textbook: Section 20.14. S. Activity 20.2 Investigating redox reactions of aqueous chlorine (S). Observations A Reaction of aqueous chlorine with halide solutions Complete the following table. Activity 20.2

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Activity 20.2 Investigating redox reactions of aqueous chlorine

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  1. Activity 20.2 Investigating redox reactions of aqueous chlorine Reference in textbook: Section 20.14 S

  2. Activity 20.2 Investigating redox reactions of aqueous chlorine (S) • Observations • A Reaction of aqueous chlorine with halide solutions • Complete the following table.

  3. Activity 20.2 Investigating redox reactions of aqueous chlorine (S) • B Reaction of aqueous chlorine with dilute sodium hydroxide solution • pH of dilute sodium hydroxide solution = _______________ • pH of reaction mixture = _______________

  4. Activity 20.2 Investigating redox reactions of aqueous chlorine (S) • Discussion • a) What happens to the bromide ions when aqueous chlorine reacts with potassium bromide solution? • _______________________________________________________ • b) What happens to the iodide ions when aqueous chlorine reacts with potassium iodide solution? • _______________________________________________________ • c) What happens to the aqueous chlorine when it reacts with the halide solutions? • _______________________________________________________ • d) Aqueous chlorine acts as a / an ______________ agent when it reacts with the halide solutions. Bromide ions are oxidized to bromine. Iodide ions are oxidized to iodine. Aqueous chlorine is reduced to chloride ions. oxidizing

  5. Activity 20.2 Investigating redox reactions of aqueous chlorine (S) • a) What products are formed when aqueous chlorine reacts with dilute sodium hydroxide solution? • __________________________________________________________________ • b) Is aqueous chlorine reduced or oxidized in the reaction? • __________________________________________________________________ Sodium chloride and sodium hypochlorite Aqueous chlorine is simultaneously reduced and oxidized.

  6. Activity 20.2 Investigating redox reactions of aqueous chlorine (S) • Conclusion • Chlorine is a strong oxidizing agent. It can oxidize ___________ ions and ___________ ions to give ___________ and ___________ respectively. • 16 When aqueous chlorine reacts with dilute sodium hydroxide solution, it is simultaneously ___________ and ___________ . bromide iodide bromine iodine reduced oxidized

  7. Activity 20.2 Investigating redox reactions of aqueous chlorine (S) • Question • Write an ionic equation for each of the following reactions.

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