Balance the following skeletal equation in acidic conditions NOỹ (aq) - Nhị (ug) In the balanced half-reaction there will be Refer back to the skeletal equation shown in Question 9. In the balanced half-reaction, there will be The half-reaction in question 9 is classified as H(aq) on the Refer again to the skeletal equation shown in Question 9. In the balanced half-reaction there will be Oxidizing agents will undergo • by of the equation • because the electrons are located on the • electrons. e' on the H₂O(l) on the of the equation. side of the equation. side of the equation.

(A) if both sentences are true,(B) if both sentences are false,(C) if the first sentence is true but the second is false, and(D) if the first sentence is false but the second is true. 1. An acidic and a basic solution may be used to balance the redox reaction when the oxidation number method is employed.  The final step in balancing redox reactions using the oxidation number method is to balance by inspection. 2. In the oxidation number method of balancing redox reactions, there is a need to add water and hydroxide ions on both sides of the chemical reaction. The oxidation state of oxygen is always (-2) except for peroxides.  3. In the half-reaction method of balancing redox reactions, the reaction is divided into three half-reactions. In a redox reaction, the oxidation number of iron changed from +2 to +3; thus, sulfur is an oxidizing agent. 4. In a redox reaction, the oxidation number of iron changed from +2 to +3; thus, sulfur is a reducing agent.  In a redox reaction, the oxidation…

Balance the following redox equation in an acidic solution using the half reaction method: __MnO4-(aq) + __ H2O2(aq)  →  __ Mn2+(aq) + __O2(g) In the balanced equation, the coefficient for water is _______ and water appears on the ______ hand side of the equation.  The coefficient for hydrogen ion, H+, is ________ and hydrogen ion appears on the ________ hand side of the equation.

Aqua regia, a mixture of concentrated HNO3 and HCl, was developed by alchemists to “dissolve” gold. The process is a redox reaction with the following simplified skeleton reaction: Au(s) + NO3- (aq) + Cl- (aq) AuCl-4 (aq) + NO2 (g) (a) Balance the reaction by the half- reaction method (b) What is the oxidizing and reducing agents? (c) What is the function of HCl in aqua regia?