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. HCl, because the oxidation number of Cl changes from −1 to 0.

Q: A sample of steel weighing 0.1798 g was dissolved and the manganese present was converted to MnO4–…

A:

Q: Cadmium sulfide, CdS, is used in some semiconductor applications. Given the following reduction…

A: The value of Ksp for CDS at 250 C is to be calculated

Q: Arrange the following ions in terms of increasing strength as an oxidizing agent. Arrange the three…

A:

Q: Which metal can be oxidized with an aqueous solution of Cu2+ but not Pb2+?     Sn     Cr…

A: This question is based on the oxidizing agent(Reduction) and reducing agent(oxidation). The detailed…

Q: Which of the following species contains manganese with the highest oxidation number? A) Mn B) MnF₂…

A:

Q: 1. When 1.164 g of a certain metal sulfide was roasted in air, 0.972 g of the metal oxide was…

A: #Q.1: Both sulfide(S2-) and oxide(O2-) have same charge of -2. The charge on the unknown metal(M) is…

Q: 8. Which of the following is the strongest oxidizing agent. (E Fe/Fe=0.77, 1200/1 -0.54,Cu²/Cu-0.34,…

A:

Q: Using text, determine the standard reduction potential (at 25°C) for Cu2+ and Cd2+. Cu2*: V Cd2+: V

A: Solution:

Q: Copper corrodes to cuprous oxide, Cu2O, or cupric oxide, CuO, depending on environmental…

A: The oxidation state of copper in cupric oxide is to be calculated

Q: For health reasons the concentration of dissolved copper ions in drinking water should be less than…

A: Standard reduction potential of a half-cell can be calculated by measuring the potential by coupling…

Q: What is the oxidation number of each element present  in the following compounds A. NF3 B. HNO3…

A: Answer:- This question is answered by using the simple concept of determination of oxidation state…

Q: solution is prepared in which 0.0400 mol each of Ce4+, Ce3+, Fe2+ and Fe3+ is dissolved in a 2.00 L…

A:

Q: Suppose you have the following reagents available at pH 0, atmospheric pressure, and 1 M…

A: The standard reduction potential or standard cell potential (E0cell) is the cell potential, which is…

Q: An acidic solution of permanganate (MnO4–) ions can oxidize nitrous acid to nitrate ions. The…

A: The reactions in which oxidation and reduction takes place simultaneously is called redox reaction.…

Q: The chemical equation for a reaction between KMnO4 and HCl is shown. 2KMnO4 + 16HCl → 2MnCl2 + 5Cl2…

A: 2KMnO4 + 16HCl → 2MnCl2 + 5Cl2 + 2KCl + 8H2O Reducing Agent is an element or compound that loses an…

Q: For the reaction shown below, balance the redox reaction in acidic solution.   Fe2O3 + CO  → Fe +…

A: Explanation Balancing of redox reaction by ion-electron method. We know the ion electron methods is…

Q: Formaldehyde (CH20) reacts with potassium permanganate (KMN04) under neutral con acid (CH202) and…

A: Oxidation: loss of electrons is called oxidation   Oxidation number of atom increases…

Q: Calculate the standard reduction potential and the standard free energy change for the reaction:…

A: A numerical problem based on electrochemistry, which is to be accomplished.

Q: Which metal can be oxidized with an Sn* solution but not with an Fe2+ solution?

A: Some metals can be oxidized with an Sn2+ solution but not with a Fe2+ solution, that has to be given…

Q: Consider these two entries from a fictional table of standard reduction potentials. x+(aq) + e →…

A:

Q: The equilibrium constant, Kc, was found to be 1.3 x 10^3 at 24.6 C for the reaction.…

A: Here we are required to find the reduction potential of half reaction of X.

Q: For the cell below, label the following on the diagram provided: Cu|0.10M Cu(NO3)2 || Cu|0.0010…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 19.35 Balance the following oxidation-reduction equations. The reactions occur in acidic solution. a…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Calculate the potential (in V) resulting from an electrochemical cell if one end of a zinc wire is…

A:

Q: Determine the oxidation number of the transition element in the following: (a) MnO2 2+ (b) Mn² (c)…

A: Oxidation Number: oxidation number, also called oxidation state, the total number of electrons that…

Q: 8. Which of the following is the strongest oxidizing agent. (E Fe/Fe=0.77, 1200/1 -0.54,Cu²/Cu-0.34,…

A:

Q: 1. Balance the following reactions in both acidic and basic media, identify the oxidation and…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: A solution of Cu* is undergoing a redox titration by the addition of Ce**. The standard reduction…

A: Given, Ce4++e-⇌Ce3+              E°=+1.72VCu2++e-⇌Cu+               E°=+0.161 V

Q: Mn with +2 oxidation state is a good oxidizing agent; Mn with +7 is a good reducing agent.

A:

Q: What metal can be oxidized by a solution of Mn2+ but not Mg2+? zinc silver…

A: From the standard data, EMn2+/Mno = -1.18 V      &       EMg2+/Mgo = -2.363 V   From the given…

Q: In the reaction expressed by the equation: 13Pb3O4(s) + 2Mn3O4(s) + 72H+ -> 6MnO4- + 39Pb2+ + 36H2O…

A: The number of moles of electrons gained by 1 mol of  Pb3O4(s) is 2 mol in accordance with the…

Q: Given the following, which statement is TRUE? 2H* + 2e Pb2+ + 2e Ni²* + 2e Fe2+ + 2e Cr* + 3e Zn²+ +…

A: The metal which will have less reduction potential will be the one to get more easily oxidised.…

Q: A 0.1000 M solution of KHC204 is 0.1000 N in acid-base reaction with 0.1000 M NaOH. What is its…

A: The equation for the reaction of KHC2O4 with NaOH is: KHC2O4(aq) + NaOH(aq) →C2O42-(aq) + H2O(l) +…

Q: The reduction potential of ferricyanide to ferrocyanide ion occurs at +0.36 V when both ions are 1M…

A: Reduction potential : It is the tendency of an element to  gain electrons and converted into lower…

Q: Assign oxidation numbers to each atom in potassium dichromate, K2Cr207 I

A:

Q: Suppose you have the following reagents available at pH 0, atmospheric pressure, and 1 M…

A: Given: Co(s), Ag+(aq), Cl-(aq), Cr(s), BrO3-(aq), I2(s)

Q: Arrange the oxidizing agents in order of increasing strength. Cu, Zn, Nit, Fe2+, H+ (acidic) Fe2…

A:

Q: a) At which electrode is Cu deposited (rise or fall)? (b) The bubbles produced are the gaseous…

A: During the process of electrolysis of copper on platinum electrodes, an aqueous solution of copper…

Q: In the blast furnace, iron is formed when iron(III) oxide reacts with carbon monoxide in a redox…

A: From the given reaction, which is oxidising and reducing agent has to be identified.

Q: <p>Which metal can be oxidized with an Sn2+ solution but not with an Fe2+ solution?

A: The order of reactivity of metals can be remembered by MAZINT- magnesium, aluminium, zinc, iron,…

Q: Identify the strongest reducing agent given the following reduction potentials.   ℰ°Cl2 /Cl- = 1.36…

A: The reduction potentials given are,   ℰ°Cl2 /Cl- = 1.36 V  ℰ°Mg2+ /Mg = -2.37 V

Q: We want to determine the purity of copper in the wires used for electrical cables. This can be done…

A:

Q: what is the oxidation number of Mn in Ca(MnO4)2?

A: Given chemical formula :- Ca(MnO4)2  To calculate :- oxidation number of Mn in Ca(MnO4)2

Q: What are the oxidation states of Cu and Zn in the following reaction? What is oxidized and what is…

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and…

Q: provide complete step by step answers:  1- List these four metals, Cu, Mg, Pb, and Zn in order of…

A:

Q: The standard reduction potentials are-0.13 V for Pb2+ and +0.80 V for Ag+. Calculate E'cell for the…

A: E°Cell = E°red - E°oxi Lower reduction potential values always undergo oxidation  Higher reduction…

Q: The process of corrosion involves two steps reactions:  Oxidation of Fe with O2, and Oxidation of…

A: Given: The process of corrosion involves two steps reactions:  Oxidation of Fe with O2, and…

Q: A sample of a substance whose only oxidizable material is tin in the +2 state, is   titrated with a…

A: Titration- According to the definition of titration, it is "the method of estimating the amount of a…

Q: Cr2072- + 6S203²- + 14H* → 2Cr3+ + 3S406²- + 7H20 What is the reducing agent here?

A: Those chemical species that lose their electrons during the reaction to reduce other atoms are known…

Q: Identify Reducing and Oxidizing Agent Fe+O2=Fe2O3

A: Oxidation : Oxidation is defined as the loss of electrons . In oxidation , the oxidation state of an…