21. A chemistry teacher needed 200 mL of 1.5 M Na S2O3, (molar mass 158 g/mole). How many grams should the teacher measure out?

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Which statement best describes the function of enzymes?

What are the two largest greenhouse gases