Natural air is always a mixture, and more or less homogenous in its major constituents. However, if the balloon was inflated by mouth, it will have less oxygen and more carbon dioxide than the air outside the balloon, which is also a mixture.
No, helium inside a balloon is not a compound. Helium is a chemical element and is the second lightest element on the periodic table. It exists as individual helium atoms inside the balloon.
A helium balloon is made by filling a latex or mylar balloon with helium gas, which is lighter than air, causing the balloon to float. The helium gas is sealed inside the balloon, allowing it to stay afloat for a period of time before slowly deflating.
In heat, the helium inside a balloon will expand, causing the balloon to inflate further and possibly burst if the heat is excessive. Heat causes the helium molecules to move more quickly and spread out, increasing the pressure inside the balloon.
Helium is lighter than air, so when it is pumped into a balloon, it displaces the heavier air inside the balloon. This creates a lower density gas mixture inside the balloon, causing it to rise and float in the air.
Helium will contract in cold weather, but that may not cause a balloon filled with it to sink since the air will also contract - and by about the same amount - so the relative densities of the helium and the surrounding are would remain about the same and the buoyancy of a helium filled balloon would remain
In a helium balloon- one that floats and rises to the ceiling it is elemental helium that is used to inflate the balloon. If you just blow into a balloon to inflate it then it is air inside the balloon which is a mixture of gases, principally nitrogen and oxygen (both elements). There are also other gases that are chemical compounds such as carbon dioxide.
Helium is usually the gas inside an air balloon. It is lighter than air and helps the balloon float.
In a helium balloon- one that floats and rises to the ceiling it is elemental helium that is used to inflate the balloon. If you just blow into a balloon to inflate it then it is air inside the balloon which is a mixture of gases, principally nitrogen and oxygen (both elements). There are also other gases that are chemical compounds such as carbon dioxide.
Inside an inflated balloon is typically air or another gas, such as helium. The gas inside the balloon causes it to expand and creates the balloon's buoyancy.
Helium
No, helium inside a balloon is not a compound. Helium is a chemical element and is the second lightest element on the periodic table. It exists as individual helium atoms inside the balloon.
A helium balloon is made by filling a latex or mylar balloon with helium gas, which is lighter than air, causing the balloon to float. The helium gas is sealed inside the balloon, allowing it to stay afloat for a period of time before slowly deflating.
Inside a balloon is typically filled with a gas, such as helium or air.
The lifting power of a helium balloon depends on its size and the amount of helium inside. On average, a standard 12-inch helium balloon can lift about 14 grams.
As the helium-filled balloon rises into the atmosphere, the surrounding air pressure decreases while the pressure inside the balloon remains the same. This causes the helium inside the balloon to expand, making the balloon increase in size. Eventually, the balloon will reach a point where the difference in pressure between the inside and outside of the balloon will be equal, and it will float at that altitude.
Helium is lighter than air, so when it is pumped into a balloon, it displaces the heavier air inside the balloon. This creates a lower density gas mixture inside the balloon, causing it to rise and float in the air.
In heat, the helium inside a balloon will expand, causing the balloon to inflate further and possibly burst if the heat is excessive. Heat causes the helium molecules to move more quickly and spread out, increasing the pressure inside the balloon.