Very. A single spark could set it off.
It is flammable
hydrogen
Hydrogen is too flammable
Hydrogen gas is the lightest gas and extremely 'flammable', rather called explosive.
Flammable- like Hydrogen.
Hydrogen is the lightest of all elements and is extremely flammable. It is also the most plentiful gas in the universe.
No. Hydrogen is an element. In its elemental form it is a flammable gas.
Yes. Hydrogen gas is highly flammable.
Hydrogen is the answer.
Hydrogen
Hydrogen is not used in blimps any longer because it is flammable and dangerous (see: Hindenberg)
methane, hydrogen, propane, butane etc. are highly flammable gases.