No, water undergoing a phase change is a physical change, not a chemical change.
no. chemical reaction requires a new substance to be created
The steam when cooled changes back to liquid water. A chemical change is usually not so reversible.
No, this is definitely a physical change, absolutely not a chemical.
it is a physical change since water and water vapor has the same chemical composition which is H2O. there is only a change in phase from liquid to gas. You must understand that water can be in any one of three PHYSICAL states, liquid, solid or vapor ( a gas ). Changing physical states is not a chemical change, but a direct result of heat or cold application.
False. The change of water from liquid to gas is a physical process known as evaporation, not a chemical reaction. This process occurs when water molecules gain enough energy to overcome the forces holding them together in the liquid state.
Drying clothes involves a physical change rather than a chemical change. The water present in the wet clothes evaporates when exposed to heat or air, changing its state from liquid to gas without undergoing a chemical reaction.
No, freezing water is a physical change, not a chemical one since no chemical reaction takes place. The water molecule (H2O) remains the same even though the physical state changes from a liquid to a solid.
No, evaporation of water from a lake is a physical process, not a chemical reaction. It involves the transformation of water from a liquid to a gas without any change in the chemical composition of water molecules.
The bubbling of water when boiled is not the result of a chemical reaction. It is due to the conversion of liquid water to water vapor, which forms bubbles as it rises to the surface. This process is physical in nature, involving the phase change from liquid to gas.
Because it just is. Because no chemical reaction takes place when water boils. It simply changes physical form from liquid to gas.
NO!!! It is a PHYSICAL change of phase between gas and liquid.
A chemical equation represents a reaction that occurs in a liquid medium. When a chemical species dissolves and forms a solution with water, it is denoted by "(aq)" in the chemical equation. This indicates that the species is now in the aqueous state.