How many microliters are there in a volume of 370 mm 3of cobra venom?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

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