. When an aqueous solution conducts electricity, there is always               . A. hydrogen or oxygen gas produced.     C. evidence of chemical change. B. a metal deposited at the cathode.        D. gas produced at one electrode.

Q: For an electrolytic cell experiment, which will contribute to the greatest source of error on the…

A: Electrolysis: It is the process by which the non-spontaneous reactions can be occurred by applying…

Q: We know that rusting of iron is due to chemical reaction, How can you prevent this from happening?

A: Rusting of iron:  The rusting of iron is due to increase in the oxidation state of iron. Mainly Rust…

Q: A. State whether the following statements are TRUE or FALSE. 21. Oxidation is defined as loss of…

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

Q: 1. By definition, an electrolyte is a. a substance that conducts electricity when molten. b. a…

A: The chemical substance that conducts electricity when molten or dissolved in water is called…

Q: When an electrochemical cell is constructed, the voltmeter reads a negative number. Select the true…

A: A question based on the battery. For the given statement the most appropriate option from the…

Q: solution of metal ions increases in direct proportion to which property? I. Electrolysis time II.…

A: According to Faraday's law of electrolysis,  Mass deposited at electrodes is directly proportional…

Q: An experiment was done to observe which factors promote the corrosion of iron. Which of the…

A: Zn bein more reactive than iron would act as sacrifacial protection layer and would slow down tha…

Q: hrough molten Strontiu O a. 128989.53 O b. 1733.26 O c. 1399.63 O d. 3466.53

A: Faradays first law is defined  quantity of  reaction  taking place in terms  of mass of ions formed…

Q: = To decompose chemical compounds we use

A:

Q: Refer to the electrolysis of water. If using phenolphthalein as an indicator, at which electrode do…

A:

Q: 6. The number of electrons transferred in a half-reaction а. corresponds to the change in oxidation…

A: Oxidation state: The oxidation state can be defined by saying that the total number of electrons…

Q: An oxidizing agent is a reactant that

A:

Q: : electric current flows from .A anode to cathode .B Cathode to anode .C through the electrolyte. .D…

A: In this question, we will see that in which direction electric current flow ( from anode to cathode…

Q: Imagine yourself lost on an island alone and you are left with just the following scrap metals.…

A: b. Aluminum anode and Silver cathode. c. Prevent CN- volatization. d. SCN

Q: AIF6+ 3e --> Al + 6F Which of the following occurs in the reaction? A. AIF6- is reduced at the…

A: Reduction is gain of electrons and substance is said to be reduced.

Q: b. How could silver be electrochemically applied on a stainless- steel plate? Explain the anodic and…

A:

Q: In a galvanic cell, reduction occurs at A. the cathode B. a salt bridge C. the anode D. the…

A: A question based on battery. The most appropriate part of the galvanic cell from the available…

Q: H.W: Cathodic protection in a metallic structure is achieved by: 1. polarizing the cathode to the…

A: Answer will be option(2)

Q: 12. What occurs during the electrolysis of a molten salt? A. Electricity is produced by a…

A: Electrolysis is a process which takes place in the electrolytic cell. In this process a chemical…

Q: V. If you A silver/nickel voltaic cell has an Eº of type your answer... change the concentration of…

A: Answer: Voltaic cell is a type of cell that converts chemical energy into electrical energy via…

Q: How does reactivity relate to oxidation

A: The reactivity how related to oxidation has to be explained.

Q: electrodes. A.) Which should be the anode and which is the cathode? Explain. B. Write the…

A: A) in voltaic cell , Oxidation takes place at anode and reduction takes place at cathode.  Anode =…

Q: D. Which of the following sentences best describes what is happening in the balanced equation shown…

A: The balanced chemical reaction is the representation of the chemical species involved along with…

Q: electrochemical system, what is being described by the following? positive electrode A. electrolytic…

A: In an electrochemical system, 1) positive electrode - C. Cathode

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

A:

Q: Which of the following is true of reduction reaction? A. It is the removal of electrons from an…

A: Reduction means gain of electrons and oxidation means loss of electrons.

Q: 7. List at least 3 examples of objects that are powered by secondary batteries. 8. For…

A: The following electrochemical problem can be solved as follow.

Q: In a galvanic cell, oxdiation occurs at ___. A. The cathode B. a salt bridge C. The anode D. The…

A: Answer:Galvanic cell is a type of electrochemical cell that converts chemical energy into electrical…

Q: 8. The diagram shows the apparatus used in an experiment to electrolyse concentrated aqueous sodium…

A: Dear student, we are authorised to solve only first three subparts of a question. Please post rest…

Q: Calculate the time required, to form 4.5 g of Strontium metal at the cathode when a 11.8 amp current…

A: mass of Sr formed = 4.5gCurrent at cathode, I = 11.8AAlso form periodic table:molar mass of Sr =…

Q: 4. the anode of dry cells and alkaline batteries is:. а. lithium с. mercury b. hydrogen d. Zinc

A: In electricity, a battery is a device consisting of one or more electrochemical cells that convert…

Q: Which of the following statements is CORRECT? Select one: A. Oxidation and reduction occur at the…

A: In any redox reaction, both oxidation and reduction occurs simultaneously  Hence the option A.…

Q: h form with alkali metals and alk

A: As per rule, allowed to answer one question at a time and post the remaining in the next submission.

Q: mean in the chemical equation: water hydrogen + oxy %3D %3D What does the " a. to produce b. reacts…

A: ----> known as double headed arrow.

Q: A copper concentration cell is to be converted to an electrolytic cell to perform copper plating.…

A: In electrolytic cell oxidation is take place at anod while reduction is take place at anode.

Q: Potassium permanganate oxidises hydrogen peroxide to produce _ gas .     a. H2 b. KMnO4 c. O2   d.…

A: In presence of Potassium permanganate,  hydrogen peroxide oxidised to produce oxygen gas The overall…

Q: What is the reducing agent in the reaction of zinc and copper (II) sulfate? a. copper (II) sulfate…

A: Zinc : Zn copper (II) sulfate : CuSO4 Zinc sulfate : ZnSO4 Copper : Cu

Q: What product is formed at the athode when molten sodium chloride, NaCl, is electrolyzed using a…

A: In electrolytic cell, at the anode oxidation takes and at the cathode  reduction takes place.

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: 4. This question pertains to electrolysis. Predict the product at the anode and cathode for the…

A: The table has been shown with the product of electrolysis reaction.

Q: 6. When an aqueous solution of NaCl is electrolyzed, Na(l) is produced at the cathode, and Cl₂(g) is…

A: Electrolysis is defined as the simultaneous oxidation reaction at anode and a reduction reaction at…

Q: What do you call the diagram or reaction that shows only the oxidation or reduction reaction? A.…

A: galvanic and electrolytic are cell . in this cell oxidation and reduction reaction take place…

Q: function of each of the following materials in the preparation of the agar media.

A:

Q: If the given statement is true, write T. Otherwise, write F and explain why it is false. 1.…

A: Answer-1 This statement is False   Explanation: In electrochemistry, movement of electrons take…

Q: Discuss the role of ion bridge or salt bridge in Electrochemical experiment. Explain thoroughly. How…

A: For maintaining the electrical neutrality in both electrolytic solution within the internal circuit…