EC: American 19 gauge wire has a diameter of 0.03589 in Solid platinum has a density of 21.45 g/cm3 t. As of 03/10/2021 the price of platinum is $ 1,176.35 per troy ounce (1 troy ounce =31.103 g).
Calculate for 275 feet of wire: The volume in cm3; the weight in pounds; how many feet of wire you can buy for $2000.

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°