Question & Answer: Below are several reactions involving halogens. Determine which are oxidation-reduction…..

1. Below are several reactions involving halogens. Determine which are oxidation-reduction reactions and how the oxidation numbers change. Also identify what chemical is undergoing oxidation and what chemical is undergoing reduction a. Cl2 + 3F2 → 2C1F3 (Selected answers: (a) redox since Cl: 0 → +3, F: 0 →-1 ; Cl2 oxidation, F2 reduction; (b) redox since O:-2 → 0, CI: +3 → 0; NiO oxidation, ClF3 reduction)

Below are several reactions involving halogens. Determine which are oxidation-reduction reactions and how the oxidation numbers change. Also identify what chemical is undergoing oxidation and what chemical is undergoing reduction. a. Cl_2 + 3F_2 rightarrow 2C1F_3 b. 6NiO(s) + 4ClF_3 rightarrow 6NiF_2(s) + 2Cl_2 + 3O_2 c. P_4 + 2ClF_3 rightarrow 4PF_5 + 10ClF d. H_2O + Cl_2O rightarrow 2HOCl e. Br^- + 3OCl^- rightarrow BrO^-_3 + 3Cl^- f. I_2O_5 + 5CO rightarrow I_2 + 5CO_2

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