Final answer:
The balanced chemical equation for the reaction between gaseous carbon monoxide and hydrogen gas to form gaseous methane (CH₄) and oxygen gas is CO(g) + 3H₂(g) → CH₄(g) + CO₂(g).
Step-by-step explanation:
The balanced chemical equation for the reaction between gaseous carbon monoxide and hydrogen gas to form gaseous methane (CH₄) and oxygen gas is:
CO(g) + 3H₂(g) → CH₄(g) + CO₂(g)
In this reaction, one molecule of carbon monoxide combines with three molecules of hydrogen gas to produce one molecule of methane and one molecule of carbon dioxide. The balanced equation ensures that the same number of each type of atom is present on both sides of the equation.