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Electrolysis
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Name 2 examples of strong electrolytes
any strong acid/alkali; molten/aqueous ionic compound-H2SO4, NaOH
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What is the value of Faraday's constant?
96,500 C
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What is the difference between metallic and electrolytic conduction?
Metallic: mobile e- ; unchanged; Electrolytic conduction: mobile ions; electrolyte decomposes
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What are examples of ions found at the anode?
anions--Cl-, OH- , SO42-
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True / False: The cathode is the negative electrode.
True
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What is electrolysis?
The chemical change which occurs to an electrolyte when an electric current is passed
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True / False: According to the ECS, a higher metal becomes discharged and a lower metal becomes ionized.
False--higher metal ionizes and the lower metal is discharged
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What type of electrolyte is pure water? Why?
weak because it only partially ionizes in H+ and OH- ions
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What happens to a metal that undergoes discharge?
gains a full outer shell/ becomes stable / becomes an atom
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What are examples of ions found at the cathode?
cations--Pb2+, Na+, Cu2+
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What type of reaction occurs at the cathode?
reduction
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What type of reaction happens at the anode
oxidation
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True / False: The anode is the negative electrode.
False
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What factors affect the quantity of elecrticity passing through an electrolytic cell?
current and time/ I & t
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True / False: A metal will displace a metal that is above it in the ECS from a compound containing the higher metal.
False
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True or false: Potassium ionizes the most easily, forms the most stable compound and is the strongest reducing agent.
True
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