A gas of low density has the tendence to ascend.
No. The volume of the helium will change as it expands the balloon due to the increase in temperature. The density of an element never changes. The reason for that is because density is just a fancy way of saying 'The atoms are this far apart' in the equation mass/volume = density.
The hot air has a density under the density of cold air. And so up in the atmosphere.
The change in voice is caused by the helium allowing the vocal cords to vibrate differently in the lighter gas.
Fill a balloon with the gas and see if it is lighter than air (only Helium and Hydrogen will make a balloon float...) Calculate the density of the gas (mass/volume)
When thinking of a balloon, it's best to think of two different chemical compounds that do not mix, the balloon itself and air. What makes the balloon pop is that the pressure of the air exceeds the force of the chemical bonds of the balloon. In order for a chemical reaction to take place, you need to start off with one set of chemicals that become a new set of chemicals.However, when a balloon pops, no new chemicals are created. All that happens is that the electron bonds of the compound we know of as the balloon break.
enough to make me hard
Make the balloon capable of further expansion. That way as the balloon rises and the barometric pressure falls the balloon can expand and allow its internal gases to achieve a constantly decreasing density.
No. The volume of the helium will change as it expands the balloon due to the increase in temperature. The density of an element never changes. The reason for that is because density is just a fancy way of saying 'The atoms are this far apart' in the equation mass/volume = density.
because salt increases the density of water so, egg ascend to top
The hot air has a density under the density of cold air. And so up in the atmosphere.
Any gas that is more dense than air.Answer:It is a bit more complex than that - an air filled balloon would still fall because air has the density of air. In a normal inflated balloon the air in the balloon is compressed and has a density more than uncompressed air. If the "balloon" were a plastic bag wiith no air pressure above the pressure of the surrounding air, the balloon would still fall as the combined (average) density of the balloon/bag system is greater than the surrounding air. Even if the balloon were filled with a gas with a lower specific gravity than air the balloon wll fall if the compressed gas density excedes that of the surrounding air or if the combined (average) density of the balloon/bag or balloon system is greater than the surrounding air.
Heated gas has a lower density than environmental air.
Making cookies would constitute a chemical change.
you would have to deacrease the density. By doing so, you can float. I don't know bout constant level, but because the air in the balloon is more dense than outside air, the balloon will sink in air. p.s. i know you s.j.v students are probably reading this :)
The density will make the difference between a fluffy cake and a hard cake.
Since hotter air is less dense than colder air, it becomes lighter than the surrounding air. Cold air filling a certain space has a certain mass. Since warmer air takes up more space, it takes less warm air to fill the same space, giving it less mass. There is less air there, so it has less of a mass, allowing it to float on top of the other air.
you can't make balloon in the facebook