What element is the reducing agent in the following redox reaction?

            H₂O₂(l) + ClO₂(aq) → ClO₂⁻(aq) + O₂(g)   

Balance the following redox reaction if it occurs in acidic solution.  What are the coefficients in front of H⁺ and Fe³⁺ in the balanced reaction?

Balance the following redox reaction if it occurs in basic solution.  What are the coefficients in front of Al and F2 in the balanced reaction?

            Al(s) + F₂(g)→ Al³⁺(aq) + F-(aq)

Identify the location of oxidation in an electrochemical cell.

What is the reducing agent in the redox reaction represented by the following cell notation?

                        Ni(s) ∣ Ni²⁺(aq) || Ag+(aq) ∣ Ag(s)

Which of the following is the strongest reducing agent?

Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C.  (The equation is balanced.)

            3 Cl₂(g) + 2 Fe(s) → 6 Cl⁻(aq) + 2  Fe³⁺(aq)

Cl₂(g) + 2 e⁻ → 2 Cl⁻(aq)      E° = +1.36 V

Fe³⁺(aq) + 3 e⁻  →  Fe(s)       E° = -0.04 V

 Determine which of the following pairs of reactants will result in a spontaneous reaction at 25°C.