If 3 moles of O2 react according to 2 H2 + O2 → 2 H2O, how many moles of H2 are required?

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Prepare for the Dual Enrollment Physical Science Midterm. Study with flashcards and multiple choice questions, each with hints and explanations. Ace your exam!

Multiple Choice

If 3 moles of O2 react according to 2 H2 + O2 → 2 H2O, how many moles of H2 are required?

The key idea is using the mole ratio from the balanced equation. The equation shows that 2 moles of hydrogen react with 1 mole of oxygen. So for every 1 mole of O2, you need 2 moles of H2. If you have 3 moles of O2, multiply by 2 to get 6 moles of H2. Therefore, 6 moles of hydrogen are required.

If 3 moles of O2 react according to 2 H2 + O2 → 2 H2O, how many moles of H2 are required?

Prepare for the Dual Enrollment Physical Science Midterm. Study with flashcards and multiple choice questions, each with hints and explanations. Ace your exam!

If 3 moles of O2 react according to 2 H2 + O2 → 2 H2O, how many moles of H2 are required?

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