Any element can become a solid at a certain temperature so yes, it can become a solid.
naphathalene(solid)->naphathalene(liquid)
No. Only solids sublime, as sublime means to go from a solid directly to a gas. Ethanol evaporates.
I think what happens is a simple precipitation. Calcium acetate isn't soluble in ethanol, and hence crashes out of solution when ethanol is added to a saturated solution of calcium acetate.The precipitation is quick, leading to small strands of solid Ca(OAc)2, forming a solid gel. A gel consists of a continuous open network and a solvent. The network can be either solid or soluble in the solvent.
Yes, evaporation, melting, and freezing are all physical changes. For it to be a chemical change, the substance would have to become a different substance. Evaporated ethanol is still ethanol, it is just in gas form.
When you put frozen ethanol into liquid ethanol, the frozen ethanol will begin to melt and mix with the liquid ethanol. Both states of ethanol will reach an equilibrium temperature, and the frozen ethanol will ultimately dissolve into the liquid ethanol to form a homogeneous solution.
Solid ethanol turns into liquid ethanol at its melting point, which is around -114 degrees Celsius.
Ethanol is a liquid at room temperature.
No, ethanol does not undergo sublimation. Sublimation is the process in which a substance transitions directly from a solid to a gas without passing through the liquid phase. Ethanol typically transitions from solid to liquid to gas as its temperature increases.
Ethanol would be in a solid state (frozen) at -100 degrees Celsius.
Solid fuel
A mixture of iodine and ethanol is considered heterogeneous because iodine does not dissolve in ethanol and will remain visibly separate as a solid in the liquid ethanol.
naphathalene(solid)->naphathalene(liquid)
Ethanol is in a solid state (frozen) at -50 degrees Celsius.
No. Only solids sublime, as sublime means to go from a solid directly to a gas. Ethanol evaporates.
An ethanol fire is extincted with carbon dioxide or solid chemicals extinguishers.
Ethanol would be a gas (vapor) at 1000 degrees Farenheit, Centigrade or Absolute (Kelvin).
Ethanol at -50 degrees Celsius will be in a solid state, as its freezing point is around -114 degrees Celsius.