How many moles of co2 are produced when 35.0 moles of c2h2 react completely

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

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned