Complete and balance the following half-reactions....

Question

Complete and balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or a reduction.

Complete and balance the following half-reaction: Mo³⁺(aq) → Mo(s) (acidic solution)

Jules Bruno · Accepted Answer

We’re being asked to balance the given half-reaction and indicate whether it is an oxidation or reduction reaction. Mo3+(aq)  → Mo(s)  (acidic  solution)When balancing redox reactions under acidic conditions, we will follow the following steps.Step 1: Balance the non-hydrogen and non-oxygen elements first.Step 2: Balance oxygen by adding H2O to the side that needs oxygen. (1 O: 1 H2O)Step 3: Balance hydrogen by adding H+ to the side that needs hydrogen. (1 H: 1 H+)[readmore]Step 4: Balance the charges: add electrons to the more positive side (or less negative side).Since all the elements are already balanced, we need to only balance the charges.Step 4: Balance the charges: add electrons to the more positive side (or less negative side):• For species that are neutral: oxidation state = 0• For ions (or species with charges): oxidation state = charge of the ion• The reactant side and the product side should have an equal overall charge (after adding electrons)Mo3+ (aq)        →        Mo(s)                                  Reactants                  Products                                             Mo3+ = +3                     Mo = 0                                             3 e– = –3                                                                                                                  ––––––––––              ––––––––––                                                    Overall = 0                Overall = 0                 This gives us a balanced half reaction: Mo3+(aq) + 3e-  →  Mo(s)                                    Since the reactant Mo3+ gained 3 electrons, the reaction is a reduction reaction. Also remember that when electrons are on the reactant side, it means the half-reaction is a reduction. When electrons are on the product side, it means the half-reaction is an oxidation.The overall balanced reduction half reaction is:Mo3+(aq) + 3e-  →   Mo(s)

Problem: Complete and balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or a reduction.Complete and balance the following half-reaction: Mo3+(aq) → Mo(s) (acidic solution)

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Problem Details

Problem: Complete and balance the following half-reactions. In each case indicate whether the half-reaction is an oxidation or a reduction.Complete and balance the following half-reaction: Mo3+(aq) → Mo(s) (acidic solution)

FREE Expert Solution

Problem Details

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