Multiple ChoiceWhich statement best describes the difference between a physical change and a chemical change?52views
Multiple ChoiceWhich of the following best describes what happens when a substance undergoes a physical change?49views
Multiple ChoiceWhich of the following is a feature of physical changes that applies to all substances?48views
Multiple ChoiceWhen water changes from a solid to a liquid or from a liquid to a gas, what happens to its chemical structure?55views