What term describes the temperature at which a substance can change state from a liquid to a gas? A. Boiling point
B. Melting point
C. Freezing point
D. Specific heat

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Ineed ! i have no clue how to do this problem.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false