The chemical equation for a reaction between KMnO4 and HCl is shown. 2KMnO4 + 16HCl → 2MnCl2 + 5Cl2 + 2KCl + 8H2O Which of the following identifies the reactant that acts as a reducing agent in the reaction and explains the answer?  KMnO4, because the oxidation number of Mn changes from +7 to +2. KMnO4, because the oxidation number of K changes from +7 to +2. HCl, because the oxidation number of H changes from −1 to 0.  or HCl, because the oxidation number of Cl changes from −1 to 0.

Displacement reaction between copper and zinc. Both metals have an oxidation number of +2 in the cation state. In solution the following reaction can occur. Write the oxidation half-reaction and the reduction half-reaction. Add both half reactions and in the result identify the reducing agent, the oxidizing agent, the oxidized product and the reduced product.

Which of the following has the highest (more positive) oxidation number? Al(s) H in water O in water Al in Al203 Cu in Cu20

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 =                           ["", "", "", "", "", "",…

Balance the following redox reaction in acidic solution, using lowest whole-number coefficients. CIO2 (aq) →CIO2(g) + CI¯(aq) Based on the balanced equation, answer the following questions: The coefficient of CIO2 is: 5 The coefficient of CIO2 is: 3 The coefficient of CI is: 1 The coefficient of H+ is: 4 on the left side of the equation. The coefficient of H2O is: 2 on the right side of the equation.

In the redox reaction below, what has been reduced? Zn (s)  + H2SO4 (aq) -->  ZnSO4 (aq) + H2 (g)