Your mother tells you to open a jar of homemade dill pickles for supper, but you find the lid is stuck. Explain why running the lid under warm water will loosen it.

Silica, sio2, is formed on silicon as an electrically insulating layer for microelectronic devices. silica is formed when silicon is exposed to o2 gas at an elevated temperature. at 900˚c, it takes 90 minutes for the oxygen to diffuse from the surface to form a 0.06 micron (0.06 x 10-6 m) thick layer of sio2 on

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin