Practice: Balance the following redox reaction in an acidic solution.
Cl2 (g) + S2O32- (aq) → Cl- (aq) + SO42- (aq)
Balancing Redox Reactions requires a new approach that accounts for the transfer of electrons between reactants.
Concept #1: Balancing Redox Reactions: Acidic Solutions
Acidic Redox Reactions generally have the presence of an H+ ion.
Example #1: Identify the half reactions from the following redox reaction.
Example #2: Balance the following redox reaction if it is found to be in an acidic solution.
Practice: Balance the following redox reaction in an acidic solution.
Cl2 (g) + S2O32- (aq) → Cl- (aq) + SO42- (aq)
Practice: What is the coefficient of Fe3+ when the following reaction is balanced?
Bi3+ (aq) + Fe3+ (aq) + H2O (l) → BiO3- (aq) + Fe2+ (aq) + H+ (aq)
