Final answer:
Melting is a physical change, burning is a chemical change, conducting electricity is a physical change, and rusting is a chemical change.
Explanation:
Melting: Physical change - solid turning into liquid. For example, ice melting into water.
Burning: Chemical change - a substance reacts with oxygen, releasing energy. For instance, coal burning.
Conducting electricity: Physical change - the flow of electrons through a material without altering its composition.
Rusting: Chemical change - iron reacts with oxygen in the presence of water causing deterioration, like the rusting of a nail.
Learn more about Physical and chemical changes here:
https://brainly.com/question/38267226
