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Physical change- it is still H2O, and can be changed back to water by cooling it.

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Q: Is heat changing H2o to steam a physical or chemical change?
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Why liquid water changing into steam is a physical not a chemical change?

The steam when cooled changes back to liquid water. A chemical change is usually not so reversible.


Is water heated and changed to steam a physical or chemical change or both?

physical only, you are only changing its state, not its composition.


Is water is heated and changed to steam is it a physical or chemical change?

The changing of water to steam is a physical change because it is still water, but only in a different state. The steam can change back into water which is a reversible change. Chemicals changes cannot change back. They are permanent.


Is changing water to steam physical or chemical?

It is a physical change because it's still a form of water just a different state.


Is steam condenses on a cold window chemical change?

Change in state is a physical change. Condensation is a change in state and is a physical change.


Is mixing popcorn steam a physical or chemical change?

it is a chemical change


A popsicle melting is physical or chemical change?

Melting is a physical change.


Is water is heated and changed to steam a physical change or chemical change?

chemical


Is steam from a kedal a physica l or chemical change?

Steam from a kettle is a physical change.


When water changes to steam is it a chemical change?

No, it is a physical change.


Is water evaporating into steam a chemical or physical change?

It is a physical change because the change is reversible.


Is steam turning to water a chemical or physical change?

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.