It is a physical change because the chemical composition has not changed.
this is a chemical change.
Physical
Physical
Chemical change. Bonds are being broken.
Dissolving salt in water is an example of a physical change. Although the ions of sodium and chlorine separate when the salt dissolves, no chemical reaction takes place.
chemical
chemical
this is a chemical change.
chemical
chemical change
this is a chemical change.
chemical because it involves stuff like chlorine
It is a chemical change.2NaCl --> 2Na + Cl2
It is a chemical change, where a chemical such as oxygen or chlorine combines with a metal, forming an oxide or chloride of that metal.
It is a physical change because the reaction can easily be reversed and no heat is involved.
NaCl itself is not a change. If you mean the formation of it from sodium ad chlorine, however, it is a chemical change.
Formation of NaCl from chlorine and sodium is a chemical process.