Answer:- MnO2 (Mn4+ to Mn3+)
before the explanation of the answer, let's understand what is an oxidizing agent
It is a type of agent that cause oxidation by taking electrons from other species and also it will reduce itself
Zn+ 2MnO2+2H2O ------> Zn(OH)2 +2MnO(OH)
Zn is reducing agent here (Zn to Zn2+)
And MnO2 is oxidizing agent here (Mn4+ to Mn3+)
Whats the oxidizing agent in this reaction? Zn+ 2MnO2+2H2O -> Zn(OH)2 +2MnO(OH)
The overall reaction for the discharge of a nonrechargeable alkaline battery is 2MnO2(s) + Zn(s) + 2H2O(1) 2MnO(OH)(s) + Zn(OH)2(s) The cathode of a brand new, undischarged alkaline battery is made of O MnO(OH)(s) Zn(OH)2(s) Zn(s) O Mn(OH)2(s) MnO2(s)
Si + 2MnO2+ H2O+ 2OH-2Mn(OH)2 + SiO32- In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. name of the element oxidized: name of the element reduced: formula of the oxidizing agent: formula of the reducing agent:
In the following oxidation-reduction reaction: Zn(s) + Ag+(ac) → Zn2+(ac) + Ag(s); Identify: a. Oxidizing agent b. Reducing agent
Oxidizing agent Reducing agent termine which half-cell elect the potentials, note that are them is to note that Pb the more negative reductie + 2e Ph. The half en offis reversed. iting both potentials: 14. Mno + SO, + HO SO M hali Oxidation Half Reaction: Reduction: Cu Oxidation Pb Reduction Hall Reaction: the reaction with respect either (or both) half rea te in both half reactions Add the two half-rear Oxidizing agent: Reducing agent + 15. 10. + HSO,...
Oxidizing agent Reducing agent termine which half-cell elect the potentials, note that are them is to note that Pb the more negative reductie + 2e Ph. The half en offis reversed. iting both potentials: 14. Mno + SO, + HO SO M hali Oxidation Half Reaction: Reduction: Cu Oxidation Pb Reduction Hall Reaction: the reaction with respect either (or both) half rea te in both half reactions Add the two half-rear Oxidizing agent: Reducing agent + 15. 10. + HSO,...
Oxidizing agent Reducing agent termine which half-cell elect the potentials, note that are them is to note that Pb the more negative reductie + 2e Ph. The half en offis reversed. iting both potentials: 14. Mno + SO, + HO SO M hali Oxidation Half Reaction: Reduction: Cu Oxidation Pb Reduction Hall Reaction: the reaction with respect either (or both) half rea te in both half reactions Add the two half-rear Oxidizing agent: Reducing agent + 15. 10. + HSO,...
Circle the stronger oxidizing agent in each pair? Zn^2+ or Pb^2+ Cu^2+ or Ag^+ Ni^2+ or Cd^2+ Ni^2+ or Cu^2+ Circle the species that is easier to oxidize in each pair. Cu or Ag Pb or Zn Ni or Pb Cd or Ni a. Circle the reaction that will occur spontaneously. NiSO_4(aq) + Al_(s) Ni_(s) + Al_2((SO_4)_3(aq)
Consider an electrochemical cell based on the following reaction: Zn(s) + 2H2O(l) + 2OH-(aq) ⇄ [Zn(OH)4]2-(aq) + H2(g) All dissolved species are at 2.5 x 10-3 M; pressure of H2 is 1 bar (standard state) Use the Nernst equation to calculate E.
Which substance is the oxidizing agent in the following reaction? Ca(s) + Zn2+1 Zn2+ (aq) 2+ - Ca (aq) + Zn(s) Zn(s) Oca 2t (al O cals) None of the above Zn2+ (aq) The oxidation number for each atom in Gaz(SO4)3 is O +2, +4, -1. 0 1. +3, +4, -1. +2, +4,-2. O 1. +3, +6, -2. The molar solubility of Calcium carbonate is 4.2 x 10-6 M. What is Ksp for this compound 3.0 x 0 x 10-16...
Sodium reacts with water according to the reaction: 2Na(s)+2H2O(l)→2NaOH(aq)+H2(g) Identify the oxidizing agent. a) H2O(l) b) NaOH(aq) c) Na(s) d) H2 (g)