The water must be heated.
No, this is definitely a physical change, absolutely not a chemical.
When water changes to water vapor, it has changed its state from liquid to vapor and no chemical change has taken place. It's only a physical change.
Water Vapor
Liquid water can change in vapors by boiling or evaporation.
The change from a vapor to a liquid is called condensation. This occurs when vapor cools down and loses energy, transforming into liquid droplets.
It needs to be cooled down to condensate.
The transfer of energy caused a chemical change in the wood, specifically known as a combustion reaction. The heat energy provided the activation energy needed for the cellulose in the wood to react with oxygen, resulting in the production of carbon dioxide, water vapor, and ash.
The change from water vapor to liquid water is called condensation.
Evaporation is the part in the water cycle that water vapor is brought by.
No, this is definitely a physical change, absolutely not a chemical.
When water changes to water vapor, it has changed its state from liquid to vapor and no chemical change has taken place. It's only a physical change.
Condensed Water Vapor
Water Vapor
evaporation
Water vapor is in the gaseous state.
Water is changed to vapor by a physical change called evaporation :)
Water vapor condensing on a cold window is a physical change. It is simply a change in state from a gas (water vapor) to a liquid (water) due to the temperature difference. No new substances are formed during this process.