Electrolysis Flashcards
(15 cards)
What is electrolysis?
A process that uses an electric current to split up a substance that contains ions
What is an electrolyte
A substance broken down by electrolysis
Why is graphite often used as an electrode
It is not very reactive and a great conducted of electricity
What are cations
Positive ions
What are anions
Negative ions
What is a cathode
A negative electrode
What is an anode
A positive electrode
What is oxidation
Loss of electrons or gain of oxygen
What is reduction
Gain of electrons or loss of oxygen
Where are the anions attracted to
The anode
Where are cations attracted to
Cathode
Which side of an ionic half equation will the electrons be on if the product has been reduced
LEFT
Which side of an ionic half equation will the electrons be on if the product has been oxidised
RIGHT
What do u need to check for if there is an aqueous solution in electrolysis ?
Taking the hydroxide into account and hydrogen??
How do you know if hydroxide will form at the cathode in an aqueous solutions
If the solution ends in ATE the hydroxide WILL GO
if it ends in IDE the hydroxide WILL NOT GO
