Cholesterol
because it is a contiytbnt and chemically
is dissolving a chemical or physical changeWell, it is not. Because you are not changing the chemical identity of the solid. It's still solid chemically and water chemically.
A solid and a liquid can form a solution, a suspension, the can chemically react, etc.
It depends on the elements used. e.g. Burn solid, black carbon in oxygen and you get CO2. The C & O have both changed chemically as they share electrons. The solid carbon has now become a gas and is no longer black. That's a physical change, brought about chemically.
No. Polonium is a solid at room temperature and is not chemically inert.
Yes, the gas is a different state of matter.
Yes, this new daughter is a different chemical element and will react differently chemically than the precursor element.
The crust of the earth is the outermost solid shell of a rocky planet. This is chemically distinct from the underlying mantle.
No, water vapour is not in the solid form. Water vapour is the gas form of water and is represented chemically as H2O(g) where the (g) stands for gas.
It is a physical change because nothing chemically happened to it. It just formed to solid but,it is still the same substance.When you take it out of the freezer it melts.
As a substance melts, the molecules of the formerly-solid substance becomes less structured and drifts further apart.
Its function is to digest food (mechanically and chemically), absorb nutrients and dispose of solid wastes.