What is the name and the chemical symbol for the gas that caused the professor's voice to change - from the movie flubber

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation