In terms of polymers, answer the following for 2 points each: Define a polymer and how it is created.
Provide an example of a synthetic polymer created from an organic source.
Explain how plastic polymers are both useful and harmful.

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

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: