electrolytic vs galvanic

[Pediateix]

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what determines the positive and negative side

https://images.flatworldknowledge.com/averill/averill-fig19_020.jpg

electrons are going to the cathode in a galvanic cell, so why is the cathode positive
basically, how come the anode and cathode sings (+/-) are switched??

 

[Medicdan]

The cathode is always the site of the reduction reaction, which means that the electrons flow in that direction from the anode. Remember, "reduction is gaining' electrons. At first this is counterintuitive because we think of electrons as having a negative charge and label the cathode as positive. The reason for this is that the basics of voltage and current were observed through experimental chemistry before much was known about electronic charge.

To sort this out, just write out each half reaction for the full cell. The side that the reduction half occurs on is always the cathode.

 

[Pediateix]

@Next Step Tutor

can you explain this question from test 5

 

[Pediateix]

and this

i know i got them right, just not 100% sure