Imagine yourself lost on an island alone and you are left with just the following scrap metals. Which items can you use to build 1.5 V battery? Assume that you can use coconuts as beakers and that seawater is a good electrolyte Lead bullets Iron nails Silver spoons Aluminum Can a.iron anode and aluminum cathode b.aluminum anode and silver cathode c.silver anode and lead cathode d.aluminum anode and lead cathode In gold cyanidation, what is the purpose of adding a strong base? a.Preven CN- volatilization b.Neutralize acid from previous processes c.Improve dissolution rate of gold d.Retard dissolution of foreign ions Which of the following form of cyanide is the least toxic? a.HCN b.CNO- C.CN- d.SCN
Imagine yourself lost on an island alone and you are left with just the following scrap metals. Which items can you use to build 1.5 V battery? Assume that you can use coconuts as beakers and that seawater is a good electrolyte Lead bullets Iron nails Silver spoons Aluminum Can a.iron anode and aluminum cathode b.aluminum anode and silver cathode c.silver anode and lead cathode d.aluminum anode and lead cathode In gold cyanidation, what is the purpose of adding a strong base? a.Preven CN- volatilization b.Neutralize acid from previous processes c.Improve dissolution rate of gold d.Retard dissolution of foreign ions Which of the following form of cyanide is the least toxic? a.HCN b.CNO- C.CN- d.SCN
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter19: Oxidation-reduction(electron Transfer) Reactions
Section: Chapter Questions
Problem 59E: As an example of an electrolytic cell, the text states: Sodium chloride is electrolyzed commercially...
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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.
Question
Transcribed Image Text:Imagine yourself lost on an island alone and you are left with just the following scrap
metals. Which items can you use to build 1.5 V battery? Assume that you can use coconuts
as beakers and that seawater is a good electrolyte
Lead bullets
Iron nails
Silver spoons
Aluminum Can
a.iron anode and aluminum cathode
b.aluminum anode and silver cathode
c.silver anode and lead cathode
d.aluminum anode and lead cathode
In gold cyanidation, what is the purpose of adding a strong base?
a. Preven CN- volatilization
b.Neutralize acid from previous processes
c.Improve dissolution rate of gold
d.Retard dissolution of foreign ions
Which of the following form of cyanide is the least toxic?
a.HCN
b.CNO-
C.CN-
d.SCN
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