In aqueous solution, hydrogen sulfide reduces (a) Fe3 + toFe2+ , (b) Br2 to Br - , (c) MnO4- to Mn2 + , (d) HNO3 to NO2.In all cases, under appropriate conditions, the product iselemental sulfur. Write a balanced net ionic equation foreach reaction.

Q: 1. All the following are methods for preparing iron (II) oxide except . ......... a. Reducing red…

A: Given reaction is :  All the following are methods for preparing iron (II) oxide except…

Q: write a balanced net ionic equation for the reaction of nitrogen oxide and hydrogen gas forming…

A: The balanced equation has an equal number of atoms on the reactant and the product side of the…

Q: Determine the oxidation number of lead in each ofthe following oxides:PbO, PbO2, Pb2O3, Pb3O4.(b)…

A: The oxidation number of lead in PbO O has oxidation number -2, and lead have x oxidation number  x…

Q: Complete and balance the following redox reaction in acidic solution TeO, (aq) + N,O,(g) → Te(s) +…

A:

Q: Provide the balanced net ionic equation for the reduction of Fe3+(aq) to Fe2+(aq) by Sn2+

A: Balance Chemical equation means no of atoms or ions should be equaal in both side reactant and…

Q: Rusting steel will form Fe₂O3. However, the protective coatings of galvanized iron and stainless…

A: A question based on corrosion that is to be accomplished.

Q: Write and balance the equation for the combination of ammonia gas with solid copper(II) oxide to…

A: Balanced chemical reaction: A chemical reaction is always balanced in terms of charge and element.…

Q: Give some physical and chemical properties of Ferrous Oxalate

A:

Q: Oxidation number of Cr in K2Cr2O7 is

A: Given Oxidation state of Cr in K2Cr2O7

Q: 1. Consider the Latimer diagram of bromine species under acidic conditions: +1.82 V +1.49V +1.59 V…

A: a) The species that is unstable towards disproportionation is Br2. It disproportionates to form Br-…

Q: Which of the follwing statements about the Group VII (Group 17) elements (Nuorine to iodine) is NOT…

A: A)   order of electronegativity oh galogens  F > Cl > Br>  I  electronegativity decreses…

Q: A 600.0 mg sample consisting of only CaC2O4and Mg C2O4is heated at 500oC converting the two salts to…

A: A question based on mole concept that is to be accomplished.

Q: of 0.1250 M H2SO4 is added to 100. mL of a solution of Pb(NO3)2, a precipitate of Pb O4 is then…

A: Given data set: 38 ml of 0.1250 M H2SO4 100 ml Pb(NO3)2 Molar mass of PbSO4 = 303 g The chemical…

Q: Based on the data in Appendix E, (a) which of the following is the strongest oxidizing agent, and…

A: If the reagent present in the reaction which would contributes a oxygen, or extracts electron is…

Q: What is the oxidation number of Fe in: FeOOH Fe2O3 Fe3O4

A:

Q: Complete and balance the following redox reaction in acidic solution 10, (aq) + CIO, (aq)1,(s) + CIO…

A: The given redox reaction is: IO3-aq+ClO2-aq→I2s+ClO2g

Q: What is the percentage of Fe2O3 in a sample of limonite ore if the iron from a 0.5000 g sample is…

A: The first thing we will calculate is the iron value for the solution of potassium dichromate. Each…

Q: Using electron configurations, suggest arguments to support the following observations egarding…

A: Reactions in which oxidation and reduction occur simultaneously is called redox reaction. The…

Q: Write complete balanced half-reactions for (a) oxidation ofnitrous acid to nitrate ion in acidic…

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Q: Complete and balance the following half-reaction in basic solution Cr(OH):(s) → CrO,? (aq) 12+ 03

A: Balancing of chemical reaction in any medium is must so that law of conservation of mass is…

Q: The oxidation state of chromium in K2CrO4 is

A: The total number of electrons that an atom either gains or loses in order to form a chemical bond…

Q: Complete and balance the following half-reaction in acidic solution As(s) → H:AsO. (aq) 2 3 4 5 6 7…

A:

Q: Illustrate the amphoteric nature of aluminum hydroxide by citing suitable equations.

A: The property of any compound behaving as an acid when reacted with base and behaving as a base when…

Q: A slag sample is known to contain all of its iron in the forms of FeO and Fe2O3. A sample of 1,000 g…

A: Redox reactions are the reaction that involves simultaneous oxidation and reduction reactions. A…

Q: (a) Write the principle involved in the following :(i) Zone refining of metals(ii) Electrolytic…

A: (a) The principle involved in the following process is as follows: (1) Zone refining of metals: This…

Q: The arsenic in a 1.22-g sample of a pesticide was converted to As by suitable chemical…

A: In some instances, aresenic can lead to harmful effects on the environment but sometimes, it can be…

Q: Calculate the pH for a 0.200 M KClO2 aqueous solution. (Ka for HClO2 is 1.1× × 10–2).

A:

Q: Account for the following: (a) (i) EU2+ is strong reducing agent (ii) Transition metals form…

A: Account for the following: (a) (i) EU2+ is a strong reducing agent (ii) Transition metals form…

Q: 10. What are the oxidation states of the elements present in S2O3-2?

A: Total number of electrons that atom either gains or losses while forming a chemical bond is called…

Q: Why does not silver evolve hydrogen on reacting with dil H2SO4

A: Silver is less reactive than hydrogen and so placed below hydrogen in the reactivity series. Metals…

Q: Cr20, + 14H* (aq) + 12e¯ → 2Cr(s) + 7H20 (aq) a) How many hours would it take to completely convert…

A: Answer-a Each mole of potassium dichromate has one mole of dichromate ion, therefore moles of…

Q: Give the symbol of the element that when it has an oxidation state of +4 has an electron…

A: Electron configuration is the distribution of the electrons in orbitals of the atom. The given…

Q: Accounts for the following(i) Rusting of iron is quicker in saline water than in ordinary water.(ii)…

A: The process by which metals get converted into stable compounds like metal oxides, metal hydroxides…

Q: What is the oxidation number of As in: AsO43- AsO33-

A: Calculation of the oxidation number of As in AsO43- ------ Suppose the oxidation number of As = y We…

Q: (a) which of the followingis the strongest oxidizing agent, and which is the weakestin acidic…

A: a) The strongest oxidizing agent in acidic solution would be: H2O2  The weakest oxidizing agent in…

Q: What is the oxidation state of iron in K3[Fe(C2O4)3] ∙3H2O? Justify your answer.

A:

Q: Complete and balance the following half-reaction in acidic solution As(s) → H:AsO. (aq) 1 2 3 4 5 6…

A: Note: Since we solve one question at a time, we’ll answer the first question as the exact one wasn’t…

Q: What are the oxidation states of the sulfur atoms in the S2O3 2 - ion?

A:

Q: ions are then oxidized to Fe3+ by 22.4 mL of 0.01 M K2C12O7. Calculate the percent by mass of Mn in…

A:

Q: Name the following compounds and assign oxidation states to the halogens in them:HIO3.

A: Given: The given compound is HIO3 To find: The name of the compound Oxidation state of iodine in…

Q: How much heat (in kJ) is needed to convert 387 g Fe,03 into pure iron in the presence of excess…

A: Given: The weight of Fe2O3 is 387 g. The given reaction is, 2Fe2O3g+3Cs→4Fel+3CO2g ∆H°=+467.9 kJ

Q: The oxidation number of Fe in Fe2Os is

A: The number given to the element during chemical combination is termed as oxidation number.  The…

Q: A mixture containing onlyl FeCl3 and AlCl3 weighs 5.95 g. The chlorides are converted to the…

A:

Q: What is AG° for a balanced reaction, if E° = +1.101 V and has 3 numbers of moles electrons?

A: Given  Standard cell potential ( E°cell ) = + 1.101 Volt  Number of mole of electron  = 3  Standard…

Q: The oxidation state of osmium (Os) in OsO4 is а. +7 b. +8 C. +4 d. +6

A: The oxidation state of osmium (Os) in OsO4 = ?

Q: Which is the least reactive alkali metal? Why is this not expected based on standard oxidation…

A: The tendency of a metal to lose electron easily is the basis for reactivity of metal atoms.

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.