air is the matter of gases because they are the same thing
Helium, hydrogen, and air are gases.
Hydrogen, until the Hindenburg,then everyone realized that "Hey, Hydrogen isn't that safe to use!"Hot air balloons, you mean?? Just air that is hot.Actual hand balloons and such? Helium or again, just air. Helium floats better because it is lighter than the surrounding air around it. Helium and air are still used in both.
helium methane hydrogen
hydrogen
Because helium (He) is lighter than air and not flammable like Hydrogen (H) which is the lightest element.
Helium, hydrogen, and air are gases.
They are gases
The correct term, or state is gas, just like helium
A hot air balloon doesn't contain helium or hydrogen.
helium does not burn, hydrogen will burn in air
Helium in a balloon is in a gaseous state. Helium is a light, non-toxic gas that is less dense than air, which is why it causes balloons to float.
Hydrogen and helium
Hydrogen, until the Hindenburg,then everyone realized that "Hey, Hydrogen isn't that safe to use!"Hot air balloons, you mean?? Just air that is hot.Actual hand balloons and such? Helium or again, just air. Helium floats better because it is lighter than the surrounding air around it. Helium and air are still used in both.
Hydrogen and Helium.
there is hydrogen and helium on mars so no.
hydrogen, helium, hot air
helium methane hydrogen