Ascience class is studying how things change when they are mixed together. study the data table below. results of mixing different substances together mixture created color change temperature change formation of bubbles salt and water clear no change no change no change acid and base clear no change warm to the touch no change lemon juice and red cabbage juice dark purple to pale pink no change no change baking soda and vinegar clear to white warm to the touch foamy bubbles based on the data, which of the following is a valid conclusion? a. mixing acid and base only makes a physical change. b. mixing lemon juice and red cabbage juice makes a chemical change. c. mixing baking soda and vinegar only makes a physical change. d. mixing salt and water makes a chemical change.