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Anode and Cathode

Posted: Mon Feb 25, 2019 1:06 pm
by Ashley Bouma 1F
If you are given a reaction how can you tell which one is the anode and which one is the cathode?

Re: Anode and Cathode

Posted: Mon Feb 25, 2019 1:48 pm
by Tam To 1B
Whichever ion undergoes oxidation is the anode and whichever ion undergoes reduction is the cathode.

Re: Anode and Cathode

Posted: Mon Feb 25, 2019 1:54 pm
by Nathaniel 2E
I use the mneumonic "An Ox" (Anode, Oxidation) and "Red Cat" (Reduction, Cathode) to keep them straight

Re: Anode and Cathode

Posted: Mon Feb 25, 2019 1:59 pm
by Jason Ye 2I
anode is oxidized and contributes electrons whereas cathode is reduced

Re: Anode and Cathode

Posted: Mon Feb 25, 2019 2:08 pm
by varunhariharan
In a cell, electrons move from the anode to the cathode. This is because electrons are lost at the anode, where oxidation occurs, and are gained at thee anode, where reduction occurs.

Re: Anode and Cathode

Posted: Mon Feb 25, 2019 4:44 pm
by Toru Fiberesima 1L
Cations (positively charged molecules) gain electrons from the cathode, which is where reduction takes place. Contrarily, anions (negatively charged molecules) lose electrons at the anode, which is where oxidation takes place. Remember OIL RIG.

Electrons always flow from the anode to the cathode or from the oxidation half cell to the reduction half cell- from negative to positive.

Re: Anode and Cathode

Posted: Mon Feb 25, 2019 5:05 pm
by Toru Fiberesima 1L
In a galvanic (voltaic) cell are the cathode and anode the same as in an electrolytic cell?