Cathode vs. Anode

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charlotte_jacobs_4I
Posts: 63
Joined: Fri Sep 28, 2018 12:29 am

Cathode vs. Anode

Postby charlotte_jacobs_4I » Fri Feb 22, 2019 2:42 pm

What are the rules for determining which is a cathode and which is an anode?

Arianna Ko 2E
Posts: 33
Joined: Fri Sep 28, 2018 12:20 am

Re: Cathode vs. Anode

Postby Arianna Ko 2E » Fri Feb 22, 2019 3:25 pm

The cathode is the reduction half of the cell and the anode is the oxidation half of the cell. Cathode= reduction half reaction. Anode= oxidation half reaction.

Sean Reyes 1J
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Joined: Fri Sep 28, 2018 12:24 am

Re: Cathode vs. Anode

Postby Sean Reyes 1J » Fri Feb 22, 2019 4:37 pm

The cathode is where the reduction half-reaction occurs, while the anode is where the oxidation half-reaction occurs.
In high school, we were taught "Red cat" and "An ox" as an easy way of remembering which reaction occurs in which electrode.
Hope this helps!

1K Kevin
Posts: 47
Joined: Fri Sep 28, 2018 12:24 am

Re: Cathode vs. Anode

Postby 1K Kevin » Fri Feb 22, 2019 6:56 pm

The cathode is the reduced half-reaction as seen in how it gains electrons in the process. The anode is oxidized in its half-reaction as seen in how it loses electrons in the process.

LilyL1C
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Re: Cathode vs. Anode

Postby LilyL1C » Fri Feb 22, 2019 9:55 pm

Oxidation occurs at the anode, and reduction occurs at the cathode. The electrons will be flowing from the anode to the cathode, and so the anode will be marked with a negative sign and the cathode will be marked with a positive sign.

Raj_Bains_2C
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Been upvoted: 1 time

Re: Cathode vs. Anode

Postby Raj_Bains_2C » Fri Feb 22, 2019 9:56 pm

The cathode is the reduction side and the anode is the oxidation side.

Nicholas Le 4H
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Joined: Fri Sep 28, 2018 12:24 am

Re: Cathode vs. Anode

Postby Nicholas Le 4H » Sat Feb 23, 2019 1:39 am

The cathode is the reduction half reaction, while the anode is the oxidation half reaction. Basically, whichever chemical species being reduced will be the cathode and whichever chemical species being oxidized will be the anode.

Amy Dinh 1A
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: Cathode vs. Anode

Postby Amy Dinh 1A » Sat Feb 23, 2019 11:59 pm

Cathodes will have electrons on its reactants side while anodes will have electrons on its products side when writing out the half reactions.

Anmol_cheema_2F
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Cathode vs. Anode

Postby Anmol_cheema_2F » Sun Feb 24, 2019 12:45 pm

The anode is where oxidation takes place (electrons leave) and the cathode is where reduction takes place (gains electrons).

Christopher Anisi 2K
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

Re: Cathode vs. Anode

Postby Christopher Anisi 2K » Sun Feb 24, 2019 3:06 pm

An anode has the reaction that is being oxidized while the cathode has the reaction that is being reduced.


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