Mary Sue is making caramel ice cream. In the first part of the process, she combines a cup of sugar and a cup of water in a saucepan. She cooks the mixture over medium heat until the sugar melts and browns to a light amber color. Then she adds the same amount of water to the mixture along with a cup and a half of cream and milk.
Which part of the preparation indicated a chemical change?
The sugar changes from white to a light amber color indicates a chemical change. Color change is a sign of a chemical change. Mixing and melting are physical changes.
