Temperature is a measurement of : 1) total energy in a system
2) the average kinetic energy of a system
3) the average potential energy of a system
4) the ability to do work

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.