Potassium metal (K) reacts violently when added to water according to the balanced equation:
2K(s) + 2 H2O(l) → 2 KOH(aq) + H2(g). How many moles of H2O are needed to react completely with 754 mol of K?
a. 2 mol of H2O
b. 7.54 mol of H2O
c. 15.1 mol of H2O
d. 3.77 mol of H2O
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