Is adding dish soap to cabbage juice chemical change?

Yes, adding dish soap to cabbage juice causes a chemical change. Cabbage juice contains anthocyanins, which are natural pH indicators that change color based on acidity or alkalinity. When dish soap is added, it alters the pH of the solution, resulting in a color change that indicates a new chemical environment. This transformation is not just a physical change but involves a chemical reaction due to the interaction of the soap with the compounds in the cabbage juice.