What was the original pressure if 645.0 mL of carbon dioxide was compressed at 1.20 L by increasing its pressure to 7.90 atm?​

How many grams of magnesium metal will react completely with 8.3 liters of 5.5 m hcl? show all of the work needed to solve this problem. mg (s) + 2hcl (aq) → mgcl2 (aq) + h2 (g)

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?