How many molecules of aspirin (molar mass of aspirin = 180.0 amu) are there in a 0.250-gram sample?

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

Freezing 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.