Calculate the pressure (in atm) needed to compress 500cm^3 oxygen gas at 750mmhg to 100cm^3

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

Find the mass in grams of 1.37x1020 particles of h3po4

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption