both helium gas and hydrogen gas are less dense than air and therefore they float in normal air. however hydrogen is also very flammable and so if it is to be used for a balloon be very cautious. the Hindenburg disaster is famous case of a balloon using hydrogen and having disastrous effects.
Helium is less dense than air. So balloons filled with helium will rise up int he air. This same attribute applies to hydrogen, methane and some other gases. The advantage of helium is that it in not flammable and presents a reduced fire hazard. On the negative side, helium is relatively rare and should not be wasted for non essential uses.
Yes, balloons filled with helium will be buoyant in air
Helium is used in balloons because it has small atoms and it has a low density.
QM isn't suitable for large systems as they have properties which can be seen where at the subatomic level you can say with more ease that nothing has any exact properties.
non reactive
it is durable and the material is somewhat cost-effective.
Yes, balloons filled with helium will be buoyant in air
Helium is used in balloons because it has small atoms and it has a low density.
You can feel nitrogen gas in balloons. But there is no advantage of doing so instead of air which contains about 80% (79 % is morecorrect.) and 20 % oxygen in it. Separating nitrogen is expensive and your balloon will not 'fly'. But fall down to ground. If you want it to go up in air 'lighter' gas like hydrogen have to be used. It can be produced from water, economically. So nitrogen is 'not' suitable gas to put in balloon.
no, its flammable.
QM isn't suitable for large systems as they have properties which can be seen where at the subatomic level you can say with more ease that nothing has any exact properties.
Helium was more suitable but not available in Germany before the war.
non reactive
The answer depends on what its "job" is.
the extra oxygen atom also makes hydrogen peroxide more reactive than water. hydrogen peroxide reacts readily with chemical pigments that give materials their color. this process which is called bleaching can make stained teeth white or turn brown hair blond.
It is a matter of mass, weight, and density. A balloon filled with normal air will not rise. Air will rise in water, because it is less dense (bubbles). Helium on the other hand is lighter than air, so it too will rise when 'submerged' in it. The actual process is that the heavier air surrounding a helium-filled balloon will "displace it" and force it upward. Hydrogen is also less dense than air, but it is flammable. Helium is not flammable, has no smell or taste, and is not poisonous. So because it is the second lightest element, and the second most plentiful in the world (found in natural gas), it's a natural fit. ---- However, consider that while it may seem fun to have balloons that go up on a string, if they escape, then eventually they pop and it is likely that the burst rubber will fall into the sea. In the sea they are mistaken for food by turtles and escaped balloons cause much harm. Also being unreactive as an element and very light, most of the helium on earth has gone to the top of the atmosphere and escaped into space. The only helium we have is found as a byproduct of radioactive decay within the Earth. The element has very important uses in industry and science and wasting it on balloons is not a sensible thing to do. There is only a finite amount of helium available to us at any given time.
Yes it is suitable because the can is not able to rust and will properly hold its position while what is in the can can not get rust on it. =]
It compresses well and it's moreeconomicalthan otherchemicals.