No
ans2. Yes it can. This is called sublimation. CO2 will change from solid to a gas without passing through a liquid stage. (At normal pressure and temperature at least.) Water ice may also do so at low temperatures - as in your fridge.
Heating can change matter from a solid to a liquid or from a liquid to a gas. Cooling can change matter from a gas to a liquid or from a liquid to a solid.
solid
You can change the state of matter of a substance by applying heat to it. When you heat a solid, it melts into a liquid. When you heat a liquid, it evaporates into a gas. This process is known as melting and boiling.
The change in state would be known as melting. Just for your information: Solid to Liquid = Melting Liquid to Gaseous = Boiling Solid to Gaseous = Sublimation Gaseous to Liquid = Condensation Liquid to Solid = Freezing Gaseous to Solid = Deposition
During a physical change, the composition of matter remains the same. The atoms and molecules of the substance do not change; only the arrangement or state of the matter is altered. This means that no new substances are formed during a physical change.
A solid is changed to liquid form of matter through melting A liquid changed to a solid is freezing
Heating can change matter from a solid to a liquid or from a liquid to a gas. Cooling can change matter from a gas to a liquid or from a liquid to a solid.
Condensation (gas to liquid or solid or liquid to solid), vaporization (liquid or solid to gas), sublimation (solid to gas), solidification (liquid to solid), or melting (solid to liquid).
A solid, or even a gas. And back again (improved)liquid is a state of matter, which can be a solid, liquid, or gas. therefore, liquid can be changed into a solid or a gas. to do so, just change the temperature of the matter. :-D
Phase change
Sublimation
the matter can change into liquid, solid and gas.
This change in the state of matter (liquid to solid) is called freezing; it is a physical change, the chemical nature of the molecules is not changed.
An increase in temperature typically causes matter to change from a solid to a liquid or from a liquid to a gas. A decrease in temperature often results in the opposite transition, causing matter to change from a gas to a liquid or from a liquid to a solid.
freezing
Solid --> Liquid --> Gas
Freezing or solidification.