We’re being asked to determine what the line notation, Al(s) | Al3+(aq) || Co2+(aq) | Co(s) indicates.
When writing a cell notation, we use the following format – “as easy as ABC”
Recall the mnemonics LEO GER.
The line notation, Al(s) | Al3+(aq) || Co2+(aq) | Co(s), indicates that
A) Co is the reducing agent.
B) Co2+ ions are oxidized.
C) Al is oxidized.
D) Al3+ is the reducing agent.
E) Aluminum metal is the cathode.
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What scientific concept do you need to know in order to solve this problem?
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