Question

question 1-47
which equation properly shows that one molecule of methane (a simple hydrocarbon gas ch₄) reacts with two molecules of oxygen gas to produce one molecule of carbon dioxide and two molecules of water?
○ ch₄+2o→co₂+2h₂o
○ ch₄+2o₂→co+h₂o
○ ch₄+2o₂→co₂+2h₂o
○ 2ch₄+o₂→co₂+2h₂o

Explanation:

Step1: Identify reactants and products

Reactants: 1 CH₄, 2 O₂; Products: 1 CO₂, 2 H₂O.

Step2: Match with options

Check which equation has 1 CH₄ + 2 O₂ → 1 CO₂ + 2 H₂O.

Answer:

CH₄+2O₂→CO₂+2H₂O