Potassium Metal (K)reacts Violently When Added to Water According to the Balanced

question 20

Multiple Choice

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