Roast whole (thawed) chickens for 20 minutes per pound, plus an additional 15 minutes. High heat method (this creates a crispy, darker skin): Preheat oven to 450 degrees F (230 degrees C) and cook whole (thawed) chicken for 10-15 minutes. Then reduce the temperature to 350 degrees F (175 degrees C) and roast for 20 minutes per pound. (Do not add the extra 15 minutes to the cooking time as with the regular method.) VIDEO: Orange Herb Roasted Chicken. Here's a roast chicken recipe that follows the regular-roast method.
The air is made up of atoms, mostly those of nitrogen and oxygen. A complete listing of the composition of the earth's atmosphere can be found at this address: http://education.jlab.org/glossary/abund_atmos.html. Author:
nitrogen makes up 71% of the air and oxygen makes up 21% of the air and the other 1 percent are argon with 0.93 % carbon dioxide with .038% neon with .0018% helium with .00052 â¦ % methane with .00015% krypton with .00011% and hydrogen with .00005%.hat is the percentage of oxygen and nitrogen in air? Dry Air is composed of approximate 20.95% oxygen and 78.08% nitrogen, along with 0.93% argon and 0.04% trace gases.