Compare atomic number, mass number, and atomic mass

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these