Hydrogen, helium and oxygen are gases.
Gravity is a physical property of any substance.
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Because hydrogen is reactive and combines with oxygen, while helium is inert.
Helium will not burn. Hydrogen burns in air to form H2O (water) Thus in circumstances where a lite gas is required (e.g. in a balloon) it is safer to use Helium. see http://www.unmuseum.org/hindenburg.htm
Oxygen
The biggest gas among hydrogen, helium, and water vapor, besides oxygen, is water vapor. Water vapor is the gaseous form of water and can exist in significant amounts in the Earth's atmosphere. Hydrogen and helium are lighter gases and typically exist in smaller quantities in the atmosphere compared to water vapor.
At room temperature: Chlorine: gas Helium: gas Hydrogen: gas Oxygen: gas
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Examples of gas: oxygen, hydrogen, methane, helium, radon, etc.
oxygen,carbon dioxide,helium,hydrogen,ch2
Because hydrogen is reactive and combines with oxygen, while helium is inert.
hydrogen,helium,oxygen and fultide dion.
Hydrogen Anaesthetic gas oxygen natural gas helium carbon dioxide argon nitrogen
Helium will not burn. Hydrogen burns in air to form H2O (water) Thus in circumstances where a lite gas is required (e.g. in a balloon) it is safer to use Helium. see http://www.unmuseum.org/hindenburg.htm
Oxygen, hydrogen, helium, neon and xenon are some types of gases. There are many types of gases being; hydrogen, oxygen, anaesthetic gas, natural gas,helium,neon and carbon dioxide
Only in a small amount. About 1% of the sun is oxygen. The sun is mostly hydrogen and helium.
Oxygen formed on earth by compound of nuclear fission of sun with helium and hydrogen.
This gas is hydrogen.