Helium gas is used in a balloon vendor.
Helium gas is pumped into a balloon.
Balloons are usually filled with air. It is a colourless gas. There are other colourless gas options: helium, hydrogen, methane. Coloured gas options (chlorine, bromine) are generally reactive with the rubber or fabric used in balloon manufacture and are undatisfacoty as balloon fillers.
Put a balloon over the top of the test tube. If the balloon inflates, it is from the gas that was produced.
Imagine inhaling to blow in a balloon. You will take in air, hold it in your mouth and blow it into the balloon. Some of it will be the carbon dioxide you were exhaling but most of it will be the air you just breathed in. So, the gas inside the balloon will be a mixture, that is, air.
Gas.
A hot air balloon is normally powered with propane. Other than that, it is just ordinary air used inside the balloon.
hellium
Helium
to keep the balloon floating
helium gas
The balloon with krypton gas has a higher density than the balloon with argon gas.
the gas takes the shape and size of the balloon
propane
Helium gas is pumped into a balloon.
The gas is hot air.
No, it is a gas balloon. It relies on lighter than air gases (helium or hydrogen) to provide buoyancy.
This depends on many variables. What is the weight of the notebook, what is the diameter of the balloon, what material is used for the balloon, what gas is used to fill the balloon, what is the weight of the material that is attached to the balloon and the notebook, is this taking place in earth's atmosphere, or somewhere else. There are several other minor variables, as well. And do remember, the balloon must be filled with a gas that is lighter than the surrounding medium!