Hydrogen fuel cells are a promising alternative to gasoline engines in part beca

Question

Hydrogen fuel cells are a promising alternative to gasoline engines in part because they release water instead of carbon dioxide. In a hydrogen fuel cell, hydrogen gas (H2) and oxygen gas (02) react to make water as shown below. Which of the following statements is a true statement about how this reaction occurs? 2H2(g) + O2(g) 2 H2O(g) A.A molecule of H2 and a molecule of o2 collide A. A molecule of H2 and a molecule of O2 collide Two molecules of H2 and a molecule of O2 must collide at one time C. An O-H bond must break. An H-H bond must form The reactants must undergo a change of state for this reaction to occur

Explanation / Answer

B) Two molecules of H2 and a molecule of O2 must collide at one time.

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.