Complete and balance the following redox reaction in acidic solution CIO¨(aq) + Cl(aq) → Cl2(g) + CIO2(g) 4- ☐ 3. ☐ 2 ப + ☐ 2+ ப 3+ ☐ 4+ 1 2 3 4 5 6 7 8 9 0 ☐ ப ☐ 2 ☐ 3 ☐ 4 ☐ 5 6 ☐ 7 ☐ 8 ☐ 9 О ос ) = (s) (1) e H+ (g) (aq) H₂O 2 H₂O+ OH H CI Reset • x H₂O Delete

Which of the following reactions is NOT a redox reaction? a)  2 Al(s) + 3 CuCl2(aq) → 2 AlCl3(aq) + 3 Cu(s) b)  MgCO3(s) → MgO(s) + CO2(g) c)  2 NaCl(s) → 2 Na(s) + Cl2(g) d)  H2O(l) + Cr2O72-(aq) + 2 Cu+(aq) → 2 Cu2+(aq) + 2 CrO42-(aq) + 2 H+(aq)

Balance the following oxidation-reduction reaction occurring in an acidic solution. MnO4 (aq) + Fe2+ (aq) → Mn²+ (aq) + Fe³+(aq) What is the stoichiometric coefficient for MnO4= Water = H+ Is water a reactant, product or neither?

Please answer the following question:

Which of the following is NOT a redox reaction? V2O5(s) + 5 Ca(l) → 2 V(l) + 5 CaO(s) 2KNO3(s) → 2KNO2(s) + O2(g) 2LiOH(aq) + H2SO4(aq) → Li2SO4(aq) + 2H2O(l) 2KBr(aq) + Cl2(g) → 2KCl(aq) + Br2(l) 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)

When the following oxidation-reduction reaction is balanced, what is the lowest whole-number coefficient for Rb*(aq)? Rb(s) + Cu²*(aq) → Rb*(aq) + Cu(s) O 3 4 O 1 O 5 O 2

Breathalyzers determine the alcohol content in a person's breath by the following (unbalanced) redox reaction: C2H5OH + Cr2O72− → CH3CO2H + Cr3+ (acidic solution) If analysis of a breath sample generates 7.70 x 10-4 M Cr3+ ions in 20.0 mL, how many mg of alcohol did it contain? (This is a case of balancing the chemical equation correctly, using redox reactions. Once you have the correct stoichiometric ratio between ethanol and Cr3+, as well as the molecular weight of the species, it is no further electrochemistry, just a moles-to-grams conversion.)

When the following oxidation–reduction reaction in acidic solution is balanced, what is the lowest whole-number coefficient for Na +(aq) ion? Na(s) + Ca2+(aq) → Na+(aq) + Ca(s)

Determine if the following reaction is a redox reaction.  Use evidence from the equation to explain your reasoning. Cu(s)+NO3(aq) yields NO(g)+Cu+2(aq)

The vanadium in a sample of ore is converted to VO2+ . The VO2+ ion is subsequentlytitrated with MnO4- in acidic solution to form V(OH)4+ and manganese(II) ion. Theunbalanced titration reaction is MnO4 − (aq) + VO2+ + (aq) +H2O (l) → V(OH)4+ (aq) + Mn2+ (aq)  + H+ (aq) To titrate the solution, 26.45 mL of 0.02250 M MnO4- was required. If the mass percent ofvanadium in the ore was 58.1 %, what was the mass of the ore sample? Hint: Balance the titration reaction by the oxidation states method.