physical change
In gas phase the molecules take more room, move fasterover (1000 times) longer distances before collating to other molecules as compaired to liquid.
The change that occurs when water turns into water vapor is called evaporation. This process happens when water is heated, either by the sun or another heat source, causing the water molecules to gain enough energy to escape into the air as a gas.
When salt dissolves in water, it undergoes a physical change, not a chemical change. This is because the chemical composition of salt (NaCl) remains the same before and after dissolving in water. The salt molecules are simply dispersed in the water, forming a homogeneous mixture.
The water went through a phase change from liquid to gas, in a process known as evaporation. The heat energy from the surroundings caused the water molecules to gain enough kinetic energy to escape into the air as water vapor.
The chemical change that produces acetylene gas is the reaction between calcium carbide (CaC2) and water. This reaction forms calcium hydroxide (Ca(OH)2) and acetylene gas (C2H2).
A chemical change is a transformation where substances are converted into different kinds of matter with new properties. This involves the rearrangement of atoms and the formation of new chemical bonds. An example of this is when hydrogen and oxygen combine to form water.
This is a chemical change.
Boiled Water.
dissolving is a physical change
The wet kind. You can boil any water.
Oxidation. Water, oxygen, and metal.
physical changeIn gas phase the molecules take more room, move fasterover (1000 times) longer distances before collating to other molecules as compaired to liquid.
This reaction is a chemical change.
It does not make a difference if the pasta is cooked or not, as water will add no calories to it.
I want to say physical change
It is a physical change.
I dont know but you better find out
A phase change.