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5) Some students believe that teachers are full of hot air. If I inhale 2.2 liters of gas at a temperature of 180 C and it heats to a temperature of 380 C in my lungs, what is the new volume of the gas?

6) 450 meters / 114 seconds =

7) Calculate the number of molecules in 87 grams of Manganese (VII) Phosphate.