Why are valence electrons used in chemical bonding? A. They are free electrons that can be used by any atom.
B. They are in the nucleus of an atom.
C. They are closest to the nucleus of an atom.
D. They are in the outermost shell of an atom.

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

In a good thermo flask the main cause of heat loss is