When a solid substance changes to a liquid at a constant temperature, the statement that correctly describes this energy change is: A. The potential energy increases, and the kinetic energy remains constant.
B. The potential energy remains constant, and the kinetic energy increases.
C. The potential energy decreases, and the kinetic energy decreases.
D. The potential energy increases, and the kinetic energy decreases.

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?