Homeostasis is maintained by which of the following?
diffusion of molecules from an area of high concentration to lower
osmosis of water into an area of high solute concentration
active transport of molecules to an area of high concentration
all of the above

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.