Write the relevant half-reactions, then combine them into a full reaction, for FeS oxidation to Fe2+ and SO42- by O2 going to H2O

O ELECTROCHEMISTRY Designing a galvanic cell from tw... A chemist designs a galvanic cell that uses these two half-reactions: standard reduction half-reaction 2H₂O(1)+2e Write a balanced equation for the half-reaction that happens at the anode. Ered= Br₂(1)+2e Ered = +1.065 V Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the overall reaction. that powers the cell. Be sure the reaction is spontaneous as written. Do you have enough information to calculate the cell voltage under standard conditions? If you said it was possible to calculate the cell voltage, do so and enter your answer here. Round your answer to 3 significant digits. 0 0 0 O Yes O No H₂(g) + 2OH(aq) 2 Br (aq) V potential = -0.83 V - 3 ⠀ ローロ X 2 5 x10 S

7-A fuel cell uses the following reduction half-reactions. O2(g) + 2H20(1) + 4e- 40H- (ag) E° = 0.401 V CO3-(aq) + 7H2O(1) + 8e– → CH«(g) + 100H-(ag) E° = 0.110 V Ja) What is the maximum cell voltage that can be generated (b) What is the overall cell reaction that occurs?

a) Balance the following redox reaction in basic solution: H2O2(aq) + ClO2(aq) → ClO2-(aq) + O2(g) b) Sketch the voltaic cell for the redox reaction, labeling the direction for electron flow, the anode and cathode , and the species present in each half-cell. Show all the work please!

A voltaic cell is constructed from a standard = Sn2+ Sn half cell (E° red -0.140V) and a standard F2 F half cell (E° red = 2.870V). (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: + The spontaneous cell reaction is: + The cell voltage is V. ↑ + + +

Enter electrons as e A voltaic cell is constructed in which the anode is a Fe2+|Fe3+ half cell and the cathode is a F|F, half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: +. In the external circuit, electrons migrate the Fe2+|Fe3+ electrode the F|F, electrode. from to In the salt bridge, anions migrate the F|F, compartment 3- the Fe2+|Fe+ compartment. +. +. 1

Write the relevant half-reactions, then combine them into a full reaction, for S2- oxidation to SO42- by O2 going to H2O

A voltaic cell is constructed in which the anode is a Mg|Mg2+ half cell and the cathode is a Pb/Pb2+ half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: + The net cell reaction is: + In the external circuit, electrons migrate ✓the Pb|Pb2+ electrode In the salt bridge, anions migrate + from to ✓the Mg|Mg2+ compartment Enter electrons as e. the Mg|Mg2+ electrode. ✓the Pb|Pb²+ compartment.

Including the state of reaction (aq),(l),(g),etc Thank you