If anyone can help, I will award a lot of points and give out brainliest!!

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

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

What can be found in the ionosphere