How to exorcise a pumpkin
Do not try this at home! Perform this experiment only under professional supervision.
Reagents and equipment
- calcium carbide;
- carved pumpkin;
- plastic cup;
Bore a hole in the side of a carved pumpkin using a screwdriver. Plug the hole. Lift the stem, place a plastic cup in the pumpkin, pour some water into it, and toss in a piece of calcium carbide. Put the stem back and wait 1 minute. Remove the plug and bring a lit splint to the pre-made opening. A vengeful spirit is released! Attention: when carving the pumpkin, do not remove the carved pieces.
Calcium carbide reacts with water to produce flammable acetylene gas.
СaС₂ + 2H₂O = Ca(OH)₂ + C₂H₂↑
If the acetylene gas is ignited in a closed space such as a pumpkin, it will explode and dislodge any weak points. Take note: though this experiment is pretty awesome, you shouldn’t attempt it at home. But did you know? There are so many safe, equally amazing experiments in the MEL Chemistry subscription!