To stop the corrosion of an easily oxidized metal, what is often employed? A sacrificial cathode O A sacrificial anode Water O Oxygen

Q: 5. How many water molecules must be added to the half-reaction to balance the mass of oxygen atoms?…

A: A redox reaction is balanced by balancing the mass and charge. Hence the number of atoms of all the…

Q: In a redox reaction, electrons are transferred: from the substance being oxidized to the oxidizing…

A: In a typical oxidation-reduction reaction or redox reaction, one of the substance is oxidized while…

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

A:

Q: Evaluate the following and express your answer in standard scientific notation. (2.96x10³)…

A:

Q: Oxidation takes place here in a voltaic cell: anode cathode electrolytic solution salt bridge

A: At which position Oxidation take place in voltaic cell = ?

Q: None

A: Step 1: Identify Oxidation and Reduction Half-ReactionsOxidation: Bromine (Br₂) is being oxidized as…

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: for reaction For the reaction 2Al + 2Cr2O3----> Al2O3 + Cr   what is being oxidised what is…

A: oxidation Oxidation is a process in which Oxidation state of element is increases. Fe2+ > Fe3+…

Q: In a Ni-Cad cell (battery), which uses solid cadmium and nickel ions,   nickel is oxidized and…

A:

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: Please balance the following redox reaction in an acidic solution and answer the followin questions.…

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Q: Which of the following is not a similarity between voltaic and electrolytic cells? charges on anode…

A: Voltaic cell is a device in which chemical energy is converted to electrical energy.  Electrolytic…

Q: Predict which cation will be reduced first if the following mixture of molten salts undergoes…

A: The Cations in the given salts are, NaCl = Na+ CaCl2 = Ca2+ AgCl = Ag+

Q: What is the direction of anion movement in an electrochemical cell? O Anode to cathode through the…

A: we need to tell the direction of movement of anions in an electrochemical cell

Q: + B BrO2 + C C,0,2- → D CO2 + Br2 + E H20

A: In balancing reactions charge and atoms should balance  there are two methods 1. Oxidation number…

Q: 1. Define the following: Cathode, anode, redox, salt bridge

A: A cathode is the metallic electrode through which current flows out in a polarized electrical…

Q: 11. From the information given, which of the following statements is true? Substance.     Reduction…

A:

Q: The electrolysis of an aqueous solution of NaCl has the overall equation 2H2O+Cl^- - H2+Cl2+2OH…

A: Given equation for electrolysis of NaCl is :   2H2O + 2Cl- -------------->  H2 + Cl2 + 2OH-…

Q: an electric current is produced by a chemical reaction electrons flow toward the anode a…

A: In galvanic cell, Spontaneous redox reaction takes place and electrical current produced. While in…

Q: A In an electrolytic cell, the cathode is where B 0 D anions are attracted to a graphite electrode…

A: An electrolytic cell converts electrical energy into chemical energy. So, Oxidation occurs at the…

Q: Use the half-reaction to balance the following oxidation-reduction reaction. For the balanced…

A: Answer:  When oxidation and reduction takes place simultaneously in a chemical reaction then such…

Q: Which of the following is a true statement regarding an electrolytic cell?     Oxidation occurs at…

A: Electrolytic cell is a cell in which one species oxidises and other reduces so that the overall…

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.