Match the following from column A to column B​

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

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

What is the temperature of one mole of helium gas at stp?