Quite possible, though the temperature at which the atoms separate will vary for different atoms.
Heated from the bottom, the warmer substance will slowly rise to the top while the cooler substance at the top falls to the bottom to be heated again. Look at a lava lamp. That is all about convection currents.
can heat form while heated
Yes, it will. The glass was fluid even while cold, though. It is a super-cooled fluid and will flow (imperceptibly slowly) at room temperature.
If you mean curdling , you need to heat the cream slowly and not add it to a hot mixture when it is cool. If cream is needed to be added to a hot mixture, slowly heat the cream to mixtures temperature in a separate pot and add it when it is hot.
In a solid, the atoms are bound together by stronger forces.
no
Heated blankets are designed to be used overnight while sleeping, so there's little risk.
Yes the whole body of the hot plate is heated while cooking because of molecular induction effects.
They gain or lose electrons, while the atoms combine.
When particles are heated they get very energetic and try to break away from their bonds to eachother. At the start they make tiny vibrations and gradually get very fast and can turn into a liquad.
For the same reason you rotate a marshmallow on a fire or a chicken in a barbecue. So one side is not over heated while the other side remains cold.
The air molecules would expand, increasing the pressure of the balloon. When anything gets cold, it contracts, and when heated, it expands. Atoms and molecules are always moving - when something is hot, the molecules are moving faster and greater distances. When something is cold, the molecules are still moving, just slowly and at much smaller distances. You won't see much a difference while it's partially inflated, though there would be one. You can see results more drastically by heating a balloon that is near completely inflated. The more air molecules that are in the balloon, the greater the expansion. In other words, the bigger the balloon and more air that's in it, when heated you will see a larger change in the balloon size.