Oxygen gas has an oxidizing strength comparable to that of nitric acid . Patina is a green or greenish -blue coating that forms on copper metal in the environment . Account for its formation

Q: Complete and balance the following redox reaction in acidic solution As203 (s) + NO, (aq) →…

A: Balanced the given redox reaction under acidic solution ----

Q: Sodium metal is produced commercially by the electrolysis of molten sodium chloride. The by-product…

A: Sodium metal is commercially produced by electrolysis of molten sodium chloride.  Sodium metal was…

Q: Complete and balance the following redox reaction in acidic solution PbO2(aq) + 12(s) → Pb2 (aq) +…

A:

Q: What are the products in the electrolysis of aqueous copper (II) iodide?

A:

Q: Identify a substance which can oxidize Fe(s) to Fe2+ (aq) but cannot oxidize Fe2+ (aq) to Fe+(aq).…

A: This can be solved by comparing the  reduction potential value.

Q: Fluorine can be prepared by electrolysis of its aqueous salts   A. False   B. True

A: The statement is False.   There are two cations and anions are present in the solution. Cations - -…

Q: Iron(II) in aqueous solution can be oxidized, in the presence of molecular oxygen, to iron(III). In…

A: Affect of pH on oxidation of iron, The higher solution pH, the faster oxidation rate of ferrous ion…

Q: The reduction of a molecule refers to a loss of electrons by the molecule a loss of oxygen atom by…

A: Reduction is defined as : Loss of oxygen atom by molecule  Gain of hydrogen atom by molecule  Gain…

Q: 7. What is the best way to minimize the corrosion of defense equipment during storage?

A: The best method to minimize corrosion is chemical dehumidification and also called dry preservation:

Q: What are the causes of corrosion in metals?

A: Metals: These are the hard substances that are having the properties like highly opaque,…

Q: What is produced at the cathode? What is produced at the anode? Pb Cl2 Mg Fe F2 I2 Fe F2 Cl2 Pb O I2…

A: Molten mixture means there is no water vapour

Q: Which statement best explains the difference between an electrochemical cell and an electrolytic…

A: Electrochemical cell- This cell converts chemical energy to electrical energy.Electrolytic cell-…

Q: Which of the following is false about corrosion? O The loss or conversion into insoluble compound of…

A: Corrosion is the removal of layer of metal or semiconductor in presence of air , moisture and…

Q: The electrolysis of a concentrated sodium chloride solution would produce   sodium metal and…

A: The electrolysis of a concentrated sodium chloride solution would produce sodium metal and chlorine…

Q: Bromine is sometimes used in place of chlorine as a disinfectant in swimming pools. If the…

A: Chlorine and bromine both belongs to halogens group. On moving from top to bottom down the group in…

Q: Write the anode and cathode reactions that cause the corrosion of iron metal to aqueous iron(II)

A: Corrosion is a natural process that converts a refined metal into a more chemically stable form such…

Q: Complete and balance the following redox reaction in basic solution Pb²+ (aq) + 10s (aq) → PbO2 (s)…

A: Balanced the Redox reaction in basic medium

Q: 4. Compare the product formed at the cathode in the electrolysis of copper(II) bromide solution…

A: Reduction potential is the measure of tendency  of a chemical species to be reduced by taking the…

Q: although carbon and hydrogen are better reducing agents but they are not used to reduce metallic…

A: Metal reacts with carbon gives metal carbides when using carbon as a reducing agent at high…

Q: A fresh metal surface with 1015 atoms per square centimeter is prepared.  This surface is exposed to…

A: A gas molecule approaching a surface encounters a net attractive potential due to the closely spaced…

Q: Balance the redox reactions by following the steps in the text. Rotate through the group, having…

A: Hi, as you have posted multiple subparts in a single question and have not mentioned which subparts…

Q: . The flotation process used in metallurgy involves __________. a.chemical reduction b.the roasting…

A: 1) The flotation process used in metallurgy involves

Q: Write the equations involved in electrochemical reaction of corrosion.   B. Give 1 example each…

A: The formation of rust requires iron, water and oxygen. Although it is a chemical process, and is…

Q: 14. The picture provided shows a setup for an electrolysis experiment. In this experiment, an…

A: An electrolytic cell runs a non-spontaneous reaction. The setup contains a positively charged anode…

Q: Redox reaction of Hydrogen Peroxide 2H202—->2H2O+O2 • Describe the reaction. •Write the…

A: The process of losing electrons is called oxidation and the process of losing electrons is called…

Q: Complete and balance the following redox reaction in basic solution O2(g) + Al(s) → H2O2(aq) + AIO2…

A: I hope we know the rules for balancing equation in basic medium. 1st all other elements except…

Q: Complete and balance the following redox reaction in basic solution Pb2 (aq) + 10: (aq) → PbO2(s) +…

A: The reaction given is, => Pb2+ (aq) + IO3- (aq) → PbO2 (s) + I2 (s)

Q: Based on the information shown in the attached image, which of the following statements are CORRECT?…

A: The process of gain of electrons by a species is termed reduction whereas the loss of electrons is…

Q: Complete and balance the reaction in acidic solution. ZnS + NO3- > Zn 2+ + S + NO

A:

Q: Gallium is produced by the electrolysis of a solution made by dissolving gallium oxide in…

A: To produce gallium, gallium oxide which has Ga(III) ion is being reduced. Hence the electrolysis…

Q: The formation of molecular bromine (Br2) from HBr and H2O2 must be derived using redox reactions.…

A: 1.)  Redox reaction : In this reaction reduction and oxidation occurs in same reaction .  Oxidation…

Q: Complete and balance the following redox reaction in acidic solution NO2(g) → NO3 (aq) + NO(g)

A: Balanced  chemical equation

Q: Nitrogen is required by many living things to maintain cellular function. Bacteria in the soil play…

A: Ammonia convert into nitrite ion in soil by bacteria is called Nitrification

Q: Gold (atomic mass = 197.0) is plated from a solution of chloroauric acid, HAuCl4; it deposits on the…

A:

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

A:

Q: Explain why chlorine gas can be prepared by electrolyzing an aqueous solution of NaCl but fluorine…

A: We wil write the required explanation

Q: Copper imparts a characteristic ________color to nonluminous flame blue green emerald green…

A: Answer There are two commonly used flammable copper salts and they…

Q: Complete and balance the following redox reaction in basic solution 103 (aq) + Re (s) → ReO4 (aq) +…

A: IO3- + Re → ReO4- + I- The given reaction is a redox reaction because it involves both reduction and…

Q: An aqueous solution of potassium permanganate KMnO4 is mixed with an aqueous solution of manganese…

A: When aqueous solution of potassium permanganate mixes with aqueous solution of manganese sulfate ,…

Q: Galvanic cells are electrochemical cells that generate electricity while electrolytic cells that…

A: In this question, we will see that the give statement is true or false.  You can see the explanation…

Q: Chlorine gas, Cl2 at 1 atm is bubbled into a solution containing 1.0 M F- and 1.0 M Br- at 25°C.…

A: The standard reduction potentials are: Br2 (g) + 2e- ⇌  2Br- (aq)  : Eo=1.07 V F2 (g) + 2e- ⇌  2F-…

Q: Write a balanced half-reaction describing the oxidation of solid iron to aqueous iron(II) cations.

A: a balanced half-reaction describing the oxidation of solid iron to aqueous iron(II) cations is as…

Q: 2. Sodium metal is produced commercially by the electrolysis of molten sodium chloride. The…

A: When molten sodium chloride is electrolysed then sodium metal is obtained at cathode electrode where…

Q: Gold (atomic weight = 197) is plated from a solution of chlorauric acid, HAuCl4; it deposits on the…

A: The process of applying a metal coating on the surface other metal by electro-deposition process is…

Q: From the principal oxidation states of Sulphur, identify the oxidation state of a sulphur compound…

A:

Q: What environmental advantage is provided by the use of nickel–metal hydride batteries over…

A: There are different types of batteries such as nickel-cadmium batteries (NiCad), nickel-metal…

Q: Complete and balance the following redox reaction in basic solution 10s (aq) → Iz(s)

A:

Q: Considering the carrosion of ferrous metal (containing iron) metal, which of the following…

A: Corrosion is a reduction-oxidation process in which metal is oxidized by the oxygen in its…

Q: Calculate the voltage of the redox reaction of element X (group 2) if the Gibb’s free energy evolved…

A: ∆G= +150KJ/mol = 150×103J/mol F= 9.649 x 104C For group element, n= 2

Q: Combined Magnesium hydroxide with copper    Combined Magnesium hydroxide with iron    Combined…

A: In a displacement reaction if a metal is less reactive than the metal present in the compound , it…

Science behind corrosion-test

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.

Corrosion

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.