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7. You have a PbSO4 solution, and a different container made with: Zn,Ni,Cu and Fe. What do you have to choose to store the solution? 8. Which of these species is the best oxidizing agent? Co2+(aq),Zn2+(aq),Ni2+(aq),Cu2+(aq) 9. Will acidified potassium dichromate (VI) oxidize chloride ions to chlorine? The E values are: Cr2O72(aq)+14H+(aq)+6eCr3+(aq)+7H2O(l)Cl2+2e2ClE=+1.33Eo=+1.36 10. Draw a diagram of the galvanic cell for the reaction and label completely Fe3+(aq)+Cu(s)Cu2+(aq)+Fe2+(aq) 11. Write the cell representation (line notation) for the following Galvanic cell