How 2 build a simple model car wich runs on c02 produced by d reaction between vinegar n baking soda?bt there is a trick

Hi everyone!!..i hv tis competition cuming soon where we muz build a simple chemical car using cheap materials..d chemicals tad we muz use is 3 molar of 40 ml vinegar n 10 gram of baking soda...d car muz travel at least a distance 5 meters caryying a load of 100ml water d trick is,there muz NOT be  ANY spillage of water or sodium acetate which r also a by-product of d reaction otr ten any idea??all suggestions will be welcomed happily!!thx..=D

rickharris6 years ago
Text speak is never a good idea if you want to be clear!

You have 3 choices - a CO2 powered rocket - see cork rocket on the right.

OR the CO2 must drive some kind of piston based engine. See

OR Drive some kind of turbine. Much depends on how much CO2 you get and how much pressure you can generate.
Not a clue: try again in English ?
Kiteman6 years ago
Chemicals in the bottom of the reaction vessel, gas exits near the top.