Steam from a kettle is a physical change.
The steam when cooled changes back to liquid water. A chemical change is usually not so reversible.
yes
Chemical changes are those in which the chemical composition of a substance changes during the process. But when steam turns into water or vice versa, only the physical state of the substance undergoes a change but the chemical composition remains same. Thus steam turning into water is a physical change.
physical
The formation of steam is a physical change. The chemical composition of steam (water vapor), is H2O, and the chemical composition of liquid water is H2O, so there is no chemical change going from liquid to gas (vapor/steam). Thus, it is a physical change.
it is a chemical change
chemical
No, it is a physical change.
no, physical. The steam can return to water if cooled. Chemical changes are irreversible.
The steam when cooled changes back to liquid water. A chemical change is usually not so reversible.
yes
NO!!!! It is a physical change of water from liquid to gas(vapour).
Chemical changes are those in which the chemical composition of a substance changes during the process. But when steam turns into water or vice versa, only the physical state of the substance undergoes a change but the chemical composition remains same. Thus steam turning into water is a physical change.
physical
It is a physical change because the change is reversible.
It is not a chemical change because the steam can be changed back when cooling and nothing new has formed. :)
It is what is called a phase change.