“Hydrogen rocket” experiment
How to make a rocket with a tin can and zinc
Can a chemist launch a rocket with the help of just two reagents?
Wear protective gloves and glasses, and work in a well-ventilated room
Warning! Do not try this at home. Only under professional supervision.
Reagents and equipment:
- 10% hydrochloric acid;
- test tube with gas pipe;
- conical flask;
- open tin can;
Make a hole in the can with the awl and close it with a piece of match. Then sprinkle zinc into the flask, pour hydrochloric acid and seal the test tube with the gas pipe. Place the end of the pipe under the can and fill the can with gas for 10 minutes. Take out the match and ignite the hole. The can flies up with a distinctive bang, like a rocket!
Zinc reacts with hydrochloric acid, and hydrogen gas and zinc chloride forms. Hydrogen is a gas with no color or smell, and is lighter than air. In air it easily combusts with an explosion, and the product of combustion is water.
Zn + 2HCl → ZnCl₂ +H₂
2H₂ + O₂ → 2H₂O