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Activities and Explorations: 10 points, Due Sunday April 23, 11:59 PM Ordering Reducing Agents Based Upon Lab Data (2023 version) Instructions: Upload your work on this page to Brightspace by typing or writing your responses and saving the file and uploading that file as a docx or pdf (not HEIC or pages). You can also take pictures of your written work and paste them in. Learning Objectives 18.1 Balancing Redox Reactions  Identify oxidized species, reduced species, oxidizing agent and reducing agent in a redox reaction  Explain observations about redox reactions in terms of spontaneity and strength of oxidizing or reducing agent  Order oxidizing or reducing agent in terms of strength using information from chemical observations Instructions: Complete the following problems. Show your work for credit, not simply the answers! Imagine that you carry out the following reactions in lab and have recorded the following observations. SnCl 2 (aq) + Ni(s)  NiCl 2 (aq) + Sn(s) Spontaneous Ni(NO 3 ) 2 (aq) + Fe(s)  Ni(s) + Fe(NO 3 ) 2 (aq) Spontaneous Zn(NO 3 ) 2 (aq) + Fe(s)  No reaction Non spontaneous 1. (2 pts.) For the first two reactions, identify what is oxidized and what is reduced. 1 st reaction  SnCl2 is reduced to Sn………Ni is oxidized to NiCl2 2 nd reaction  Fe is oxidized to Fe(NO3)2…….Ni is reduced 2. What role does the Cl − ion play in the first reaction? What role does the nitrate ion play in the second? Cl- acts as a spectator ion and does not participate in the reaction. The role of Cl- is balancing the charge of Ni2+ 3. (2 pts.) Use the lab observations to order the oxidizing agents from weakest to strongest. Zn2+, Fe2+, Ni2+, Sn2+ 4. (2 pts.) Use the lab observations to order the reducing agents from weakest to strongest. Sn , Ni, Fe, Zn

5. (2 pts.) Will SnCl 2 react with Zn (make a claim)? Justify your response using the lab observations. It does not react bc its to metal an diron and not spontaneous….iron cannot oxidize the SnCl because it’s a weak oxidizing agent. 6. (2 pts.) Will Fe 2+ react with Sn (make a claim)? Justify your response using the lab observations. I can infer from the reactions that Fe2+ does not interact with Sn. A further indication that Fe(s) is not reactive with the nitrate ion (NO3-) is the reaction Zn(NO3)2(aq) + Fe(s) No reaction. Therefore, it follows that Fe2+ and the chloride ion (Cl-) in SnCl2(aq) would not interact. According to laboratory tests, adding a piece of Sn metal to a solution containing Fe2+ ions results in no reaction. This is due to Sn's lower level of reactivity compared to Fe, which prevents it from displacing Fe2+ from its salt solution. We may therefore assert that Fe2+ and Sn won't react.

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