It is a physical change because the change is reversible.
The change of a liquid to a gas is a physical change because its chemical properties do not change. Molecules of the liquid are just moving farther apart, therefore turning into a gaseous state.
Don't take only my word for it, but, i think it would be a chemical change because if you think about it you are inhaling oxygen and exhaling carbon dioxide. Which would make it a chemical change, but I am not 100% positive.
A Physical Change is a change in the form of either gas, liquid, or solid while a chemical change is a change that occurs in the molecule such as the the burning of methane: CH4+2O2-->CO2+2H2O. Indicators of a Chemical reaction are: Heat, Light, pH, Color, Smell, ect. While Physical will be like ice melting into water or water being boiled into steam.
in a physical change, no new substance is formed. for example liquid water. You freeze it, it becomes ice. when you boil it, it evaporates into steam. HOWEVER. Steam, ice, or liquid, it is STILL water. You only form new substances in chemical changes: cooking/burning food, reacting chemicals etc. : )
evaporating from the garden
Evaporation is a physical process because not involve any chemical process.
It's a physical change because no new substances are formed, the molecules simply get further apart.
It's a physical change because no new substances are formed, the molecules simply get further apart.
it is a physical change. It's obvious becuase it is just a change of state
No, water evaporating into steam is a physical change rather than a physical property. A physical property is a characteristic of a substance that can be observed without changing the substance's chemical composition, whereas a physical change is a change in the substance's state or appearance without altering its chemical structure.
it is a chemical change
No. Steam is water vapor. Steam is formed by boiling water, which is a physical change.
chemical
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.
The change of water to steam is a physical change, not a chemical change. In this case, the water molecules are simply changing phase from a liquid to a gas, but the chemical composition of water remains the same.
While boiling isn't the same as evaporation in that the entire liquid is heated to the point of steam and not just the surface molecules, the same physical change that causes evaporation can be seen in boiling. When boiled, a liquid becomes hot enough that it converts from that form into a gas, and if gathered and cooled, that gas reverts to its liquid form. For example, if a pot of boiling water is covered to trap the steam, that steam gathers on the inside of the cover where it again becomes water. This not the result of any chemical change in the water, just a change in its physical form.SO, EVAPORATION IS A PHYSICAL CHANGE.
The formation of steam from boiling water in a kettle is a physical change. It involves a phase change from liquid to gas without altering the chemical composition of the water molecules.