Now "react" methane (CH4) with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). Start with one molecule of methane and one molecule of oxygen. Continue reacting molecules of CH4 and O2 until all the reactant atoms have been used to form products.

Summarize what happened in this reactant.
___CH4 + ___O2---> ___CO2 + ___H2O

1 answer

Again, what do you not understand?