Yes, Gas does have a gravity. Gravity affects anything and everything that has a mass. But as the gravitational force is directly proportional to the mass, and since gases have a very very low mass, The force exists but is very low.
If gases were not affected by gravity, the atmosphere would not exist!
Yes, gases just like all other materials have density. This is why a balloon filled with helium will rise to the ceiling. It floats because all of the air around it is denser than the helium in the balloon. If you let the helium balloon go outside, it will rise to an altitude that is equal in density as the helium.
No. Gravity is a force.
No.
Where the substance to be filtered is above the filter element, and uses the force of gravity to move it through the filter.
Sorry; there is no line between gravity and no gravity. Gravity is everywhere.
I'm not sure of any specific name for "vertical motion" other than falling or acceleration and deceleration due to gravity. You will have the force of gravity. You may also have an element of a centripetal force, but for all practical purposes this would be minimal near the surface of the earth.
Gravity affects hydrogen the same way it does any other element. Hydrogen is lighter than air (nitrogen and oxygen) and therefor is buoyant in air, meaning it floats. No more differently than a piece of wood floats on water. There is no force counteracting gravity's force on the hydrogen, except that nitrogen and oxygen are pulled down to earth displacing the hydrogen. when the hydrogen reaches the outer layer of the atmosphere it will be held there by gravity until some other force (solar wind maybe) strips it away from the earth.
Because, the person who discovered gravity was named Gravity Dickakiss
There is no such thing as a specific gravity for any element.
Gravity acts on all objects with mass, so no. All elements are influenced by gravity.
Discovering the element of gravity.
Where the substance to be filtered is above the filter element, and uses the force of gravity to move it through the filter.
Gravity is caused by mass which is a property of physical matter. Even hydrogen, the lightest element in the Universe, has mass and is subject to gravity. An interesting question would be why the mass has gravity?
All particles are subject to gravitational forces.
native gold is 19.3
Gravity is constant. It does not change based on the element, only the relative distance from the a specific body can reduce the effect of gravity (moving away from the earth lessens its gravitational pull on an object).
cellular sharing of element and molecules
That will depend on the gravity field and the amount (mass) of each element that you are weighing.
because the gravity of the earth is hot!!!!!!1
Yes. Everything is subject to relativity. We know that electormagnetism (EM) is subject to relativity because we see light from distant stars and galaxies bent by the gravity of intervening objects (see http://en.wikipedia.org/wiki/Gravitational_lens). Gravity is subject to relativity because it is an essential element of General Relativity. GR says that gravity is the curvature of spacetime.