its a secret
H +This indicates the ion of hydrogen, which has donated it's only electron and has become positively charged. Hydrogen is one proton with one electron in it's orbital, so H + is a good symbol for the positively charged proton.p +Is also used.
Hydrogen gas is flammable. Hydrogen has been used in the past as it has much greater lift capacity than Helium but H2 flamability was made all too apparent when the Hindenburg burned in New Jersy in 1937 killing 35 of the 97 on board.
Zeppelins used hydrogen gas as the lifting gas to make them buoyant in the air.
The burning splint test is used to test for the presence of hydrogen. The symbol for hydrogen is H.
At least a 20 Volume, 6% peroxide should be used for lifting. Although, the hair tone can still be changed with 10 Volume, 3%. Using this however, you will not see much lift.
Since the beginning of the modern calender.
because hydrogen used to be in those airships and since hydrogen is flammable it was very dangerous
Hydrogen peroxide is a colorless, viscous and unstable liquid, which is used in disinfectants and bleaches. It has no atomic number since it is a compound.
The technique of sewing decorations on fabric has been used since the beginning of recorded time.
The word mate started being used as friend since the beginning of time.
Yes. Science has been used since the beginning of mankind.
The only answer that comes to mind is "Airships". Hydrogen, the lightest element, was used in airships, where excess weight was undesirable. However, accidents like the Hindenburg disaster showed that Hydrogen gas was too dangerous(it is extremely flammable) to be used. Since then, Helium has been used instead. Helium is also a very light element, and is completely safe, as it is inert.
Helium, usually. Hydrogen can be used in theory as well, but since it's highly explosive, it usually isn't.
Capital punishment has been used since before the beginning of recorded history. No one can say when it was first used.
Nascent hydrogen is used in organic synthesis reactions to reduce functional groups such as aldehydes, ketones, and unsaturated compounds. It is also used in various industrial processes, such as hydrogenation reactions in the production of chemicals and pharmaceuticals.
Since the United States began its westward expansion at the beginning of the 19th century.
Hydrogen is always used, so yes, it can be used everyday.