Give the oxidation number of Mn in each of the oxides below:- MnO2- Mn3O4- Mn2O7- MnO- Mn2O3

Balance the following equations by oxidation-reduction methods; note that three elements change oxidation state.. Co(NO3)2(s)Co2O3(s)+NO2(g)+O2(g)

Assign an oxidation state to phosphorus in each of the following: (a) NaH2PO3 (b) PF5 (c) P4O6 (d) K3PO4 (e) Na3P (f) Na4P2O7

Describe the production of metallic aluminum by electrolytic reduction.

Balance the following oxidationreduction equations. The reactions occur in acidic or basic aqueous solution, as indicated. a MnO4+IMnO2+IO3(basic) b Cr2O32+ClCr3++Cl2(acidic) c S8+NO3SO2+NO(acidic) d H2O2+MnO4O2+MnO2(basic) e Zn+NO3Zn2++N2(acidic)

What is the oxidation state of the halogen in each of the following?. (a) H5IO6. (b) IO4-. (c) ClO2. (d) ICl3. (e) F2

Like sulfur, selenium forms compounds in several different oxidation states. Which of the following is NOT likely to be an oxidation state of selenium in its compounds? (a) 2 (b) +3 (c) +6 (d) +4

Order the following oxidizing agents by increasing strength under standard-state conditions: Ag+(aq); Cd2+(aq); MnO4(aq) (in acidic solution).

An aqueous solution of an unknown salt of vanadium is electrolyzed by a current of 2.50 amps for 1.90 hours. The electroplating is carried out with an efficiency of 95.0%, resulting in a deposit of 2.850 g of vanadium. a How many faradays are required to deposit the vanadium? b What is the charge on the vanadium ions (based on your calculations)?

Copper(I) ion disproportionates to copper metal and copper(ll) ion. (See Study Question 99.) 2 Cu+(aq) Cu(s) + Cu2 + (aq) (a) What two half-reactions make up the disproportionation reaction? (b) Use values of the standard reduction potentials for the two half-reactions in part (a) to determine whether this disproportionation reaction is product-favored at equilibrium. (c) What is the equilibrium constant for this reaction? If you have a solution that initially contains 0.10 mol of Cu+ in 1.0 L of water, what are the concentrations of Cu+ and Cu2+ at equilibrium?