Which of the following physical changes shows a change in a substance's state of matter?

How can you tell whether a change in matter is caused by a chemical reaction?

When the color, smell, and taste of the mixture changed, I knew a chemical ___ had taken place.

Ciara's bike has rusted, which means that the iron in the metal changed to rust. What has occurred?

A physical change _____ change the composition or identity of the substance.

Label each of the following as either a physical process or a chemical process: c. pulverizing an aspirin

Label each of the following as either a physical process or a chemical process: b. boiling a cup of water