How do you propel a toy train using a chemical reaction?

What chemical reactants would you use to propel a toy train on a wooden track for a distance of 1 meter. What apparatus would be involved?|||as long as the train is light enough just use baking soda and vinagar as for the assembly pour water in a bottle with baking soda and poke a small hole in the top but if you want it to be a one step process fill the bottle with baking soda then get a syringe full of water and stab it through the cap when you want it to start the reaction is





NaHCO3 + HC2H3O2 ---%26gt; NaC2H3O2 + H2O + CO2