Answer:
Al (s) | Al³⁺ (aq) || Ni²⁺ (aq) | Ni (s)
Explanation:
It seems that you meant "A voltic cell".
Here, Al (s) represents the solid anode while Al³⁺ is in aqueous phase, these two forms are separated by a solid line. || is the salt bridge while Ni²⁺ is in aqueous phase and is reduced on the nickel cathode that is Ni (s).
The water would become polluted.
<span>The superscripts in an electron configuration represents the number of electrons and protons in an element. </span>
Answer:
Potassium (K) [First element in period 4]
