electrochem chem

flow
- electrons flow from oxidation to reduction sites
- anode to cathode
sites of redox
- anode always oxidation (vowels tgth)
- cathode always reduction
galvanic cell
- spontaneous flow
- anode (neg) to cathode (pos)
electrolysis
- non-spont flow
- forced by external source
- anode (+) to cathode (-) cus electrons are being forced to move in a way they dont want to go
reducing agent

experiences oxidation (loses electrons)
oxidizing agent

experiences reduction (gains electrons)
LEO

losing electrons oxidation
GER

gaining electrons reduction
concentration cell
- same substance but different concentrations
- flow from low concentration to high concentration
anode
- oxidation
- atoms become ions
- mass loss from electrode, concentration in cell increases
cathode
- reduction
- ions become atoms
- mass added to cathode, concentration decreases

Author

jhox

351850

Card Set

electrochem chem

Description

chem mcat electro

Updated

2020-05-04T17:58:25Z

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