How many of the following are oxidation-reduction reactions? In the reaction sho

Question

How many of the following are oxidation-reduction reactions? In the reaction shown below, what species is oxidized? Given the following reaction in acidic media: Fe^2+ + Cr_2O_7^2- rightarrow Fe^3- + Cr^3+ answer the following question: The coefficient for water in the balances reaction is Balance the following oxidation-reduction reaction using the half-reaction method: Fe^3+ = Gamma rightarrow Fe^2+ + I_2 In the balanced equation, the coefficient of Fe^2+ is The following unbalanced equation represents a reaction that occurs in basic solution: MnO_4^2- + C_2O_4^2- rightarrow MmO_2 + CO_3^2- How many moles of MnO_4^2- are required to produce 1 mole of CO_3^2-?

Explanation / Answer

7) B) I-

8) D) 7 (6 Fe2+ + Cr2O72- + 14 H+ --> 6 Fe3+ + 2Cr3+ + 7H2O)

9) B) 2 (2I-(aq) + 2Fe3+(aq) ------> I2(aq) + 2Fe2+(aq))

10) E) None of this

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