How is the kinetic energy of the particles of a substance affected during a phase change?
kinetic energy increases during exothermic changes and decreases during endothermic changes.
kinetic energy decreases during exothermic changes and increases during endothermic changes.
kinetic energy does not change, but the potential energy does.
kinetic energy changes in the opposite way that the potential energy changes.

What is a difference between a mixture of elements and a mixture of compounds

How does the digestive system interact with the circulatory system? a. messages sent as electrical impulses from the digestive system are transported throughout the body by the circulatory system. b. nutrients taken in and broken down by the digestive system are carried to various parts of the body by the circulatory system. c. nutrients and gases are absorbed by organs in the circulatory system. then, they are transported to all parts of the body by organs in the digestive system. d. oxygen and carbon dioxide are exchanged by organs in the digestive system, and the gases are carried to the rest of the body by the circulatory system.

Describe the basic structure of the atom