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5. Identify the material being reduced, the material being oxidized, the reducing agent, and the oxidizing agent in each of the following redox reactions. Try to write the half-cell reactions. a) 2 Na(s) + ½ O2(g) Na 2O(s) reduction = ½ O2(g) + 2e − O2− O 2 = reduced; OA oxidation = Na(s) Na +(aq) + e − Na = oxidized; RA
Balance the following redox reactions by the half-reaction method, rewriting the balanced equations below the given unbalanced equation. Show your work below each reaction and
Worksheet # 4 Balancing Redox Reactions Balance each of the following half-cell reactions. (In each case assume that the reaction takes place in an ACIDIC solution.) Also, state whether the reaction is oxidation or reduction. 1. S 2 O 3 2- → SO 4 2-2. MnO 4 - → Mn2+ 3. As → AsO 4 3-4. Cr3+ → Cr 2 O 7 2-5. Pb2+ → PbO 2
28 Ιουν 2010 · For each reaction in problem 13, identify the oxidizing agent and reducing agent. 15. Write half-reactions for the oxidation and reduction process for each of the following.
8 Μαΐ 2013 · 18. Which half-reaction correctly represents reduction? A. S2 +2e !S0 B. S2!S0 +2e C. Mn7+ +3e !Mn4+ D. Mn7+!Mn4+ +3e 19. A solution contains 90 grams of a salt dissolved in 100 grams of water at 40 C. The solution could be an unsaturated solution of A. KCl B. KNO3 C. NaCl D. NaNO3 20. Which is an oxidation-reduction reaction? A. 4Na+O2!2Na2O B ...
Write half reactions for each of the following atoms or ions. Label each as oxidation or reduction. Use the Activity Series Chart. Balance the spontaneous redox reaction below.
17 Απρ 2013 · When presented with a REDOX reaction in this class, we will use the “half-reactions” method to balance the reaction. Let’s take a look at a simple reaction WITHOUT HYDROGEN OR. First, is this even a REDOX reaction? Is there a species that is being reduced and a species that is being oxidized? We must assign oxidation numbers.
