Agas effuses 4.0 times faster than oxygen (o2). what is the molecular mass of the gas?

One of the cell membrane's functions is to protect the cell keep wastes in the cell create new cells keep light out of the cell

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

What is the equilibrium constant of aa+bb=cc+dd