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Which change occurs at the anode in an operating electrochemical cell?

January 2018 NY Regents Chemistry Exam


22 Which change occurs at the anode in an operating electrochemical cell? (1) gain of protons

(2) gain of electrons

(3) loss of protons

(4) loss of electrons


Solution: A good mnemonic to memorize for the electrochemistry chapter is : Red Cat and An Ox. Red Cat stands for reduction is at the cathode. An Ox stands for anode is oxidation. Next, we can remember the mnemonic OIL RIG. OIL (oxidation is loss of electrons). RIG (reduction is gain of electrons).

Answer: 4


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