Combustion reactions can be described using word and symbol equations. The fuel used in gas barbeques is butane. Butane molecules contain only carbon atoms and hydrogen atoms and it is written as ...

Glue or tape the atoms to the paper to make a more permanent chemical equation of the combustion of methane. 5 Explain. Step 6 Help students count the number of atoms on each side of the equation.

In the combustion version, the engine burns hydrogen to produce power through combustion like a conventional engine, whereas fuel cells use a chemical process to convert hydrogen into electricity.