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BUMHS MDCAT 2025 Chemistry #Stoichiometric Calculations #Stoichiometry

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Consider the reaction: 2Na + Cl₂ → 2NaCl. If 4 moles of Na and 2 moles of Cl₂ are reacted, how much Cl₂ will remain unreacted? (BUMHS MDCAT 2025)

Verified Answer & Explanation⌄

Correct Answer: A) 0 mol

Concept Explanation

The balanced equation requires 2 mol Na for 1 mol Cl₂. Thus 4 mol Na reacts exactly with 2 mol Cl₂, leaving 0 mol Cl₂.

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