What are the oxidation numbers for nickel and sulfur in Ni2(SO4) 3? a. Ni +3; S +6 b. Ni +2; S +2 c. Ni +2; S +4

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

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Q: + 1.14 V TI Pt Cr3+ (1 M) Cr2+ (1 M) T13+ (1 M) T13+ (aq) + 3e- → TI (s) Cr2+ (aq) → Cr3+ (aq) + e-…

A: An electrochemical cell possesses cathode and anode. A cathode is a metal electrode which is…

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

A: Corrosion is a process through which metals in manufactured states return to their natural oxidation…

Q: current of 4.39 A is applied to a CuSO4 solution to deposit copper. Calculate the time it will take…

A: Given that: Current(I) = 4.39A = 4.39 C/s Mass of copper deposited = 1.00×102g = 100g

Q: In the oxidation-reduction reaction Snat +2 Fe2+-→2 Fe3+ + Sn2* O a. Sn4+ is oxidized and Fe2+ is…

A: Gain of electrons is known as reduction and loss of electrons is known as oxidation.

Q: Determine the oxidation number

A: As per gudielines , if multiple questions posted , first question is allowed to answer, please post…

Q: 20.51 Given the following reduction half-reactions: Fe (aq) + e Fe2 (aq) Eed = +0.77 V S,02 (aq) +…

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Q: A- Determine the oxidation numbers of chlorine in each of the following compounds(all atoms except…

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Q: What is oxidation number of O in O2 ?   Choose the correct answer from the given choices below: a.)…

A: We have to predict the oxidation number of oxygen.

Q: What current is required to plate out 1.22g of Ni from q solution of Ni2+ in one hour? Atomic mass…

A: Given:  Mass of Ni = 1.22 gm  Molar mass of Ni = 58.69 g/mole  Time = 1 hour = 3600 sec  Since Ni is…

Q: Which will be the best oxidizing agent among the following? 3+ I. Au* +3e → Au +1.50 V II. Ag* +e →…

A: with the help of standard Reduction potential , we will decide the relativestrength of oxidising…

Q: 12. Based on E" values, which metal is the most easily oxidized? a. Hg c. Pb b. Zn d. Au Based on E…

A: E0 is the standard reduction potential. It is the ease with which an atom can get reduced or gain an…

Q: An aqueous Cu+2 solution is electrolyzed for 45 minutes. A 3.2 ampre current is used. What mass of…

A: Electrochemistry is the branch of chemistry that deals with the chemical processes that cause…

Q: Semimetallic silicon can be made by the electrolysis of molten SiO2. (a) What mass of Si is formed…

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Q: A 0.250M solution of Na2C2O4 is to be used in a reaction in which C2O-24 will be oxidized to CO2.…

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Q: List the species that is reduced and the one that is oxidised.        Mn2+  +  H2O2  → MnO2 +  H2O

A: Chemical species which accepts the electron is known as reduced species and chemical species which…

Q: A solution containing Pt** is electrolyzed with a current of 3.00 A. How long will it take to plate…

A: Introduction : given : Current=3 A  Volume = 0.50 L  Molarity=0.010M

Q: A solution of Mno is electrolytically reduced to Mn3+. A current of 7.79 A is passed through the…

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Q: Cd2+/Cd = -0.403 V. To protect Cadmium from corrosion through sacrificial anodic protection, which…

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Q: The following skeletal oxidation-reduction reaction occurs under acidic conditions. Write the…

A: Reduction is the process of gain of electrons while oxidation is the process of loss of electrons.…

Q: A solution containing Pt*+ is electrolyzed with a current of 5.20 A. How long will it take to plate…

A: Using the formula for mass deposition.  Mass deposited = Zit/nF Where,  Z = molar mass = 195.084…

Q: How many moles of Ni are present in 1.9 g? x mol Ni Submit How many moles of electrons are required…

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Q: Half-reaction containing acid : 3 N2 (g) + 2 H+ (aq) + 2 e- → 2 HX (aq) Eo red = -3.09 V 1. using…

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

Q: Given their standard reduction potentials, which of the species is going to be oxidized? Select…

A: Given :-  Cu2+/Cu = 0.34V  Zn2+/Zn = -0.76V  To identify :-  Oxidized species

Q: What are the oxidation steps of manganese in K5 [Mn (CN) 6NO], Na3MnO4 and KMnO4 compounds?

A: The oxidation state or oxidation number is the hypothetical charge that an atom would have if all…

Q: Determine the oxidation number of manganese in NaMnO4 A. +3 B. +4 C. +5 D. +7 E. +6

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Q: Which choice correctly identifies the oxidation numbers (O.N.) for each element in Ca(NO₃)₂? A) Ca =…

A: Oxidation number: oxidation number is the number of electrons that atoms in a molecule can share,…

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: Which is more reducing, a solution with 20 mM sufide (HS-; assume S0 as product of sulfide…

A: A reducing agent is the species defined as the substance which oxidizes itself while reduces others.…

Q: (ii) The thermite reaction can be used to join railway tracks together. Aluminium is used in this…

A: Definition of redox reaction is, In redox reaction one species is oxidize and other is reduced.

Q: O An oxidizing agent gains electrons. O An oxidizing agent causes another species to be oxidized. O…

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Q: How long, in hours, will it take to electrodeposit 181 g of aluminum in a cell with molten AICI3…

A: Given, mass of Al = 181 g Current (I) = 123 A Time (t) = ? Note: molar mass of Al = 27 g/mol

Q: Consider the following reaction and their reduction potential values: Cu+ + Ni2+ —> Cu2+ + Ni…

A: Overall Cell potential  Spontaneity

Q: Electrolytic process of determining molar mass.  An electrolysis cell contains X3+ ions. When a 5.45…

A: Molar mass is defined as the mass of 1 mole of substance. Its units are g/mol. In order to determine…

Q: What is the oxidation number of "Cl" in Mg(ClO2)2?   a.) –1 b.) +6 c.) +3 d.) +7   e.) –7

A: The compound given is Mg(ClO2)2.

Q: Which of the following is the strongest oxidizing agent? Mn04 - + 4H+ + 3e- - Mn02 + 2H20 12 + 2e- +…

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Q: Question six in photo

A: When Cobalt metal dissolves in nitric acid, Cobalt nitrate is obtained with the evolution of…

Q: Calculate the Gibbs free energy (AG°) of the reaction below. Is this reaction spontaneous or…

A: At standard condition Gibbs free Energy explain maximum work done by a thermodynamical system .

Q: Predict which species will be oxidized and which will be reduced in a molten salt mixture that…

A: The available species for oxidation and reduction are: Cd2+, I-, Na+, OH-, Al3+ and Cl-.

Q: Which substance in this spontaneous reaction is considered the strongest oxidizing agent? 2Al(s) +…

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Q: Which is more reducing, a solution with 20 mM sufide (HS-; assume S0 as product of sulfide…

A: Reducing agents are those species that undergo oxidation, while the oxidizing agent is those species…

Q: O3- is an oxidizing agent  that oxidizes :     KI to I2     I2 to I-     S2O3- to I

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Q: What is the oxidation reduction of KMnO4+NaCl+H2SO4->Cl2+K2SO4+MnSO4+H2O+Na2SO4

A: Let's start by assigning the oxidation states to all atoms:

Q: Which of the following is the strongest oxidizing agent?   MnO4– + 4H+ + 3e– → MnO2 + 2H2O   ε° =…

A: Oxidising agent is the species which gains electrons in the reaction. The strongest oxidising agent…

Q: ow many grams of X (MW = 44.20 g/mol)(in g) will be deposited on a cathode in 1.91 h by a current of…

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Q: What is the oxidation number of manganese in KMnO4? 0 +3 -2 +7

A: Answer: Oxidation number of an element in a compound or ion is the charge it carries over it.

Q: What is the oxidation and reduction half reaction for the following equation: Cd(s) +NiO2(s) +…

A: Recall the given redox reaction,                       Cd s  +  NiO2 s  +  2 H2O l  →  CdOH2 s  +…

Q: A test for completeness of the reduction of copper(II) ions to metallic copper can be done via the…

A: The metal which has a more negative standard reduction potential value acts as a reducing agent.

Q: 17) The number of Faraday of charge needed to deposit 3.54 x 10-4 moles of Cr+3 ion from its…

A: In this question, we want to determine the number of Faraday of charge.  Given : moles of Cr3+ ion…