Yes, a mole of hydrogen weighs 1 g, a mole of helium weighs 4 g. Still lighter than air, as a mole of air weighs about 30 g.
Hot air, hydrogen or helium are lighter than cold air.
No. Helium is lighter than air
because helium is ligter than air
A helium balloon floats because helium gas is lighter than air. By filling a balloon with helium, the balloon also becomes lighter than air. The helium balloon floats for the same reason that objects float on water: objects less dense than water are pushed up by buoyant forces equal to the weight of water displaced by that object. What happens in water also happens in air, and the helium balloon is pushed upwards by a force equal to the weight of air it displaces.
hydrogen
Helium is lighter than air
yes. helium is lighter than earth or even air.
Hot air, hydrogen or helium are lighter than cold air.
No. Helium is lighter than air
There are many, but one is Helium
because helium is ligter than air
Hot air, hydrogen or helium are lighter than cold air.
Helium is lighter than air.
Because helium is lighter than air.
Helium is lighter than air. so balloons filled with helium will float in air
A helium balloon floats because helium gas is lighter than air. By filling a balloon with helium, the balloon also becomes lighter than air. The helium balloon floats for the same reason that objects float on water: objects less dense than water are pushed up by buoyant forces equal to the weight of water displaced by that object. What happens in water also happens in air, and the helium balloon is pushed upwards by a force equal to the weight of air it displaces.
hydrogen