Given the following balanced reaction, O2(g) + 4 H+(aq) + 4 Fe2+(aq) → 2 H2O(l) + 4 Fe3+(aq) What is the equilibrium constant (K)?

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

4d^55s^1 ( third choice)

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