How can you tell that a hamburger is undergoing a chemical change when you cook it?
Good question? How do you tell that a hamburger undergoes chemical change when you cook the patty?
Chemical changes are characterized by the formation of new substances and the making and breaking of chemical bonds. In practice, this generally means a colour change or the precipitation of a new substance, or by the formation of a gas.
When you cook the patty, you certainly get the colour change, as the meat caramelizes and turns brown. You also get the aroma of the cooked meat - both processes indicate chemical change.
It's time for lunch now!