Tijuan mixed a solid and a liquid together in a beaker. He determined that a chemical change occurred.
A
ice mixed into warm oil, because the change of state that occurred when the ice melted cannot be reversedB
baking soda mixed into vinegar, because the production of bubbles indicates that a new substance formedC
sugar mixed into hot water, because the disappearance of solid indicates that the chemical identity of the sugar changedD
sand mixed into water, because when sand was added the mass of the beaker increased