Most substances shrink when they freeze from a liquid into a solid, but because of water's unique shape, when it freezes it actually

In which situation can a mixture always be called a solution

How have the greenhouse gasses increased from the year 2000 to 2018

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