In 1901, Thomas Edison invented the nickel-iron battery. The following reaction takes place in the battery:
Fe(s) + 2NiO(OH)(s) + 2H2O(l) → Fe(OH)2(s) + 2Ni(OH)2(aq)
How many mol of Fe(OH)2 is produced when 5.00 mol of Fe and 8.00 mol of NiO(OH) react?

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

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