Sodium chloride is dissociated in water, forming ions Na+ and Cl-.
Dissolution is a physical process because the chemical composition of salt (NaCl) remain unchanged; also the process is reversible.
chemical
When salt is mixed in with water, they form a solution. Salt is the solute, and water is the solvent.
Chemical change.
When an acid dissolves in water hydrogen ions bond with water to form hydronium ions, H3O+ When bases dissolve in water, hydroxide ions are formed, OH-
The formation of water drops on the outside of a glass is a physical change. This occurs due to condensation, where water vapor in the air cools and changes into liquid water when it comes into contact with the cold surface of the glass. The process is reversible, as the water can evaporate back into vapor when the temperature rises. Therefore, it does not alter the chemical composition of the water.
chemical change
A physical change!
chemical
A phase change.
evaporation.
Sodium chloride is dissociated in water, forming ions Na+ and Cl-. Dissolution is a physical process because the chemical composition of salt (NaCl) remain unchanged; also the process is reversible.
a change of stateIce melting is a physical change
I want to say physical change
a physical change called melting. It is also called a phase change.
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.
When salt is mixed in with water, they form a solution. Salt is the solute, and water is the solvent.
Jello dissolves faster in sugar not water.