because i dont really know
repulsive forces
They are pulled together by the Br ion and the positive end of a water molecule.
Evaporating and condensing
well if you play with silly putty slowly, it wont break because the liquid, flour etc, it keeps it together
Substances that dissolve in water are generally crystalline constructs of molecules that are pulled apart by the strong hydrogen bonding forces held by water. Flour is made from ground wheat, and as such cannot dissolve, as such.
The force that HOLDS atoms and molecules together is electromagnetic(mostly electric, but magnetic does plays a part). The negatively charged electrons and positively charged atomic nuclei interact through the electromagnetic force to stick together. There is more to it than "Coulomb's Law". Electromagnetic force on the scale of atoms is more complex than on the scale of charged balls. To discuss all details requires quantum physics. Still, it is the electromagnetic force. Some atoms hold together very tightly, forming solids. Less tight electromagnetic bonds result in liquid or gas. As for what BRINGS the atoms together, there are a variety of possibilities. In a biological situation, it is very often the work of proteins. These are biological "workhorses" that have individual tasks for which they are created. It may be to place a certain atom in the wall of a cell. It may be to bend one molecule into another shape, allowing it to become a different molecule. Often digestion plays a role. You drink a glass of milk. A calcium atom is digested. Proteins then place the atom in your bone to heal a broken arm. When you get to the level of outer space, the driving force is gravity. A meteor is pulled to a planet by gravity. The meteor burns up passing through the atmosphere. The atoms that were part of the meteor are now part of the planet. There are many ways to bring atoms together, but they all use electromagnetic force to stay together as molecules.
Surface tension-Attractive forces cause particles on the surface of a liquid to pull together and resist from being pushed apart. These particles on the surface are pulled toward the center of the liquid and and sideways along the surface. There are no liquid particles above to pull on them. Particles under the surface are pulled in all different directions. Surface tension is the uneven forces acting on the surface particles of a liquid. Surface tension causes a liquid to act like it has a thin film stretched across the surface.
Yes. the mutually attracting forces of gravity hold the moon and earth together and cause the earth's tidal forces.
They are pulled together by the Br ion and the positive end of a water molecule.
gravity
When the big bang occurred tiny particles spread out evenly through the universe. Wel almost evenly and due to these tiny flaws in the spreading. Gravity pulled these particles together and after enough of these particles form. Hydrogen atoms begin to fuse creating stars that shine.
ionosphere
Convection zone
they get pulled back into the ocean
atoms are held together bye positively charged particles (protons) and negatively sharged particles(electrons) and another elementary particle called the nuetron. The nucleus of an atom consists of protons, and neutrons and the shell outside of the nucleus consists of electrons.what holds the protons together (since they are pulled together even though they have the same charge and the nuetrons are not charged at all) is another particle called a muon which holds the protons in place. And since electrons in the outer shell are all negativley charged they are all evenly spaced out in the shell.
Actin is thin, pulled together by myosin.
Tension
When a star explodes, many dust particles get pulled together to form stars, planets, and moons. Once the particles start to group, smaller bodies will rotate around bigger bodies. With collisions narrowing down what bodies will last, all the little individual particles are formed into those stars, planets, and moons. Moons are generally formed by particles shot out in space during collisions.