QUESTION 14 Electrochemistry In Part A of this experiment, a series of galvanic cells are built. While assembling each cell, a piece of filter paper soaked in a starch-iodide complex is used to determine which metal electrode should be cathode (reduction), and which should be the anode (oxidation). The lab manual describes this test as follows: "A dark blue color (the starch-iodine complex) will appear after about 1-2 minutes around the wire at which the half-reaction taking up electrons is occurring." A student assembles a cell and tests the two electrodes as described. What is true about the electrode which caused the starch-iodide complex to turn blue? Electrochemistry.pdf O The electrode is responsible for oxidation, and should be made the anode in the cell. O The electrode is faulty, and should be disposed of. O The electrode is responsible for reduction, and should be made the cathode in the cell. The electrode is responsible for reduction, and should be made the anode in the cell. O The electrode is responsible for oxidation, and should be made the cathode in the cell.
QUESTION 14 Electrochemistry In Part A of this experiment, a series of galvanic cells are built. While assembling each cell, a piece of filter paper soaked in a starch-iodide complex is used to determine which metal electrode should be cathode (reduction), and which should be the anode (oxidation). The lab manual describes this test as follows: "A dark blue color (the starch-iodine complex) will appear after about 1-2 minutes around the wire at which the half-reaction taking up electrons is occurring." A student assembles a cell and tests the two electrodes as described. What is true about the electrode which caused the starch-iodide complex to turn blue? Electrochemistry.pdf O The electrode is responsible for oxidation, and should be made the anode in the cell. O The electrode is faulty, and should be disposed of. O The electrode is responsible for reduction, and should be made the cathode in the cell. The electrode is responsible for reduction, and should be made the anode in the cell. O The electrode is responsible for oxidation, and should be made the cathode in the cell.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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.
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Transcribed Image Text:QUESTION 14
Electrochemistry In Part A of this experiment, a series of galvanic cells are built. While assembling each cell, a piece of filter paper soaked in a starch-iodide complex
is used to determine which metal electrode should be cathode (reduction), and which should be the anode (oxidation). The lab manual describes this test as follows:
"A dark blue color (the starch-iodine complex) will appear after about 1-2 minutes around the wire at which the half-reaction taking up electrons is occurring."
A student assembles a cell and tests the two electrodes as described. What is true about the electrode which caused the starch-iodide complex to turn blue?
Electrochemistry.pdf
O The electrode is responsible for oxidation, and should be made the anode in the cell.
The electrode is faulty, and should be disposed of.
O The electrode is responsible for reduction, and should be made the cathode in the cell.
The electrode is responsible for reduction, and should be made the anode in the cell.
O The electrode is responsible for oxidation, and should be made the cathode in the cell.
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