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8 session.masterlngchemistry.com[myctfiterriView?assignmentPrcblemlD:32070962 — Maste ringchemistrv: Chapter 13 General Chemistry 2 Chapter 13 I) Balancing Redo: Equations: Half-reaction Method Balancing Redox Equations: Half-reaction Method In addition to mass balance, oxidation-reduction reactions mustbe balanced such that the number of electrons lost in theoxidation equals the number of electrons gained in the reduction.This balancing can be done by two methods: the halffiacfionmethod or the oxidation number method. The haifereactionmethod balanoes the electrons lost in the oxidation haiffiacfionwith the elections gained in the reduction halfereaction. in eithermethod Hgoil). OH- (aq). and H+ (aq) may be added tocomplete the mass balance. Which substances are useddepends on the reaction conditions. ACIGIC Sflillijfll’l In acidic solution, the nitrate ion can be used to react with a number ofmetal ions. One such reaction ‘3 N03 * (all) + 5,12. (am-mom) + Sn“ (aq)Since this reaction takes place in acidic solution, H200) and H+ (sq) will be involved in the reaction. Places for these species are indicated by the blanks in thefollowing restatement ofthe equation: NO: ‘ (aq) + Sn2+ {aq} + _—>N02 (3:1) + Sn“r (aq) + _ Part A What are the coetticients of the reactants and products in the balanced equation above? Remember to indude H1 0(1) and H+(aq) in the appropriate blanksYour answer should have six terms. Enter the equation coefficients In order separated by commas (e.g., 2,2, 1,4, g, 3). Include coefficients M1, as required, for grading purposes. :1 Hints MyAnswers leelJp RevlewPart Beale 301 ution Potassium permanganate, KMnCh . is a powerful oxidizing agent. The produds ofa given redox reaction with the permanganate ion depend on the reactionconditions used. In basic solution. the following equation represents the reaction of this ion with a solution containing sodium fluoride: Mum—(flu) + F’ (aq)->Mn02 (E) + F: (M)Since this reaction takes place in basic solution. H2 0(1) and OH‘ (aq) will be shown in the reaction. Places for these species are indicated by the blanks in thefollowing restatement ofthe equation: M1104—(aq) -l- F’ (aq) + _—>M.n02(5) + F2 (aq) -l- _ Part B What are the coefficients of the readants and products in the balanced equation above? Remember to indude H2 0(1) and OH— (34) in the blanks whereappropriate. Your answer should have six terms. Enter the equation coefficients In order separated by commas (e.|., 2,2, 1.4, c, 3). Include coefficients ot1, as required, for grading purposes. :i Hints MyAnswers leeUp RevlewPart Provide Feedback