* No new substances are formed: The nail polish and the remover simply mix together. The molecules of the nail polish are dispersed within the remover, but their chemical structure remains the same.
* The change is reversible: You can evaporate the remover, and the nail polish will be left behind, essentially in its original form.
* Only the state of matter changes: Nail polish goes from a solid state to a dissolved state, but its chemical composition doesn't alter.
In contrast, a chemical change would involve the formation of new substances with different chemical properties. For example, burning wood is a chemical change because it produces ash, smoke, and carbon dioxide, all of which are different from the original wood.