1.12 g of a certain metal displace 444 cc of hydrogen at N. T.P. from dilute HC1. 1.12 g of the same metal when dissolved in HNO3 and the resulting nitrate being finally heated to
redness gave 1.6 g of oxide. State the law of chemical combination which these data
illustrate.

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 would you do if you told the guy you liked that you liked him

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!