Nothing
If you're talking about a "bubble gun" - the white residue is soap. If you're talking about bubble GUM - it is powdered sugar.
Most of the residue will actually be on your wrist, but yes. After firing any handgun that discharges gunpowder, some of that powder will exit through the gun's chamber and get on your hand/s, wrist, and lower arm.
No. Gunpowder (smokeless powder) has a different composition than dynamite. BOTH may contain some nitroglycerin, but there the formulas take different paths. However, there IS scientific testing for explosives residue as well as for gunshot residue. Since I work with explosives, this makes air travel and security screening an interesting event for me.
no, because they believe that same gun powder can use in different types of guns and that will also cheap
No, coffee powder and coffee grounds are not the same. Coffee powder is finely ground coffee beans used for making espresso, while coffee grounds are coarser and are the leftover residue after brewing coffee.
Fireworks and Gun Powder was invented in the 9th century. it was invented by Li Tian.
Wash your hands with soap and water. This will NOT remove microscopic traces of gun powder residue that can be found with laboratory examination.
The coroner found traces of poison in her system.A police officer observed traces of gun powder residue on Ms. Mason's hands.
Black Powder.
Gun powder is always a mixture.
Gun Shot Residue
gun powder was udes for fireworks, then weapons