When gases react according to a balanced chemical equation, such as:
2H₂(g) + O₂ (g) → 2 H₂O(g) , what do the coefficients represent?

Question

When gases react according to a balanced chemical equation, such as: 2H₂(g) + O₂ (g) → 2 H₂O(g), what do the coefficients represent?

Quizplus · Accepted Answer

The coefficients in a balanced chemical equation represent the relative volumes of gases that react, assuming all gases are at the same temperature and pressure. This is based on Avogadro's law, which states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.

When Gases React According to a Balanced Chemical Equation, Such