It is a physical change.
Mercury because butter does not freeze. Butter does not have a freezing point. Butter is a fat that solidifies gradually as it gets colder and does not go through a phase change (freezing) abruptly like mercury or water.Although butter will become as solid as it gets at a temperature closer to that of the freezing point of water than the freezing point of mercury.
boiling point is 629K freezing point is 234K
Neptune can reach way below freezing and Mercury can reach way above burning.
Mercury is the only metal that is liquid at room temperature. Mercury fumes are also toxic.
Mercury
reversible. because you can melt it back to a liquid.
The freezing of mercury is a reversible physical change because it can be melted back into a liquid state through the application of heat. When mercury freezes, its molecules slow down and solidify into a crystalline structure, but this process can be reversed by adding energy to break these bonds and return it to its liquid form.
The freezing of mercury is a reversible change because it can be converted back into a liquid state by adding heat. When mercury is frozen, its molecules slow down and form a solid structure, but this process can be reversed by applying heat to melt it back into a liquid.
During freezing the chemical nature of mercury remain unchanged.
yes
Yes, heating mercury to produce mercury vapor is a physical change because no new substances are formed. The change is reversible, and the mercury can return to its original state once cooled back down.
physical change
Mercury because butter does not freeze. Butter does not have a freezing point. Butter is a fat that solidifies gradually as it gets colder and does not go through a phase change (freezing) abruptly like mercury or water.Although butter will become as solid as it gets at a temperature closer to that of the freezing point of water than the freezing point of mercury.
The freezing point of mercury is -38,829 0C.
Yes, freezing anything is a change of state.
Both
At mercury's own freezing temperature, the mercury can be either solid or liquid; that is the definition of "freezing temperature".