How many Faradays are needed to completely electrolyze one mole of Cu2+ ions?

25

For each reaction below, identify the element oxidized, the element reduced, the oxidizing agent, and the reducing agent. 2 Al + Fe2O3 → Al2O3 + 2 Fe

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For Questions 11-16: Balance the following oxidation-reduction reaction in acidic conditions using the half reaction method by following the step described in each question. ??2?−27(??)+???2(??)⟶??+3(??)+??−3(??)Cr2O7−2(aq)+HNO2(aq)⟶Cr+3(aq)+NO3−(aq) Step 1: Assign the oxidation states of each ATOM in the reaction before and after the reaction takes place. Reactants: Cr =                           ["", "", "", "", "", "", "", "", "", "", "", "", "", "", ""]                             O =                           ["", "", "", "", "", "", "", "", "", "", "", "", "", "", ""]            H =                           ["", "", "", "", "", "", "", "", "", "", "", "", "", "", ""]                               N =                           ["", "", "", "", "", "", "", "", "", "", "", "", "", "", ""]            Products: Cr =                           ["", "", "", "", "", "", "", "", "", "", "", "", "", "", ""]                             O =                           ["", "", "", "", "", "",…

4511/take/9/ MULTIPLE CHOICE Question 11 Which half-reaction correctly represents oxidation? → Fe +2 +2e= A Fe(s) (aq) B Fe +2 (aq) → Fe() + 2e- CFe + 2e¯ → Fe*2 (s) (aq) D Fe +2 → +2e Fe (aq) Fe (s) ర ర ర ర ó ó ó ó Ó00000000 Total Questions Answered All Changes Saved ☆ QL ✩ < * Continue

Zn ---->  Zn2+ + 2 e– is a reduction half-reaction. Group of answer choices     True   False       8.The molar mass of CaCl2 is 111.1g/mol. Group of answer choices     True   False       One mole of chlorine molecules contains 2 mol of chlorine atoms. Group of answer choices     True   False

Balance the following redox reaction by adding the coefficients for each of the species.   Al(s)+F2(g)→Al3+(aq)+F−(aq)   When I first answered this question I put a 2 in front of the F on the product side. After submitting my answer the program said that it was incorrect. Before sending in a question I found the problem on bartleby and it said that putting a 2 in front of the F on the product side would make my answer correct. What am I missing? Sorry about my first question, I meant to include the equation.

Complete and balance the following redox reaction in acidic solution. Be sure to include the proper phases for all species within the reaction. ЗС, 2- 1 H 2 (s) 3- 103¯(aq) + PO3³(aq) → 10¯(aq) + PO4³- (aq) 3 H₂O* Reset Question 15 of 36 4 (1) O LO 5 H.Q 6 OH 7 (g) P ↑ ● 8 e x H₂O 9 11 (aq) | 0