A substance formed when two
or more chemical elements are
chemically bonded together?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide

Which substance—wood or silver—is the better thermal conductor? a thermal conductor is a material that requires very little heat energy to change its temperature. explain your answer.