Final answer:
The balanced chemical equation is option B) H₂(g) + O₂(g) → H₂O(l).
Step-by-step explanation:
The balanced chemical equation is option B) H₂(g) + O₂(g) → H₂O(l). In a balanced chemical equation, the number of atoms of each element on both sides of the equation must be equal. In this equation, we have 2 hydrogen atoms and 2 oxygen atoms on both sides, indicating that the equation is balanced.