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Oxygen is a colorless, odorless gas that makes up about 21 percent of all breathable air. Oxygen is located in Group 16 of the periodic table of elements, along with sulfur, tellurium, polonium and selenium.


Some symptoms of high levels of carbon dioxide in the blood are drowsiness, inability to concentrate and headache, according to About.com. In more severe cases of high carbon dioxide, also known as hypercapnia, symptoms include flushed skin, dizziness, muscle twitches, increased blood pressure and r


At sea level, the partial pressure of oxygen should be between 75 and 100 millimeters of mercury, and the partial pressure of carbon dioxide should be between 38 and 42 millimeters of mercury, notes MedlinePlus. The oxygen saturation of the blood should be between 94 and 100 percent.


In the strictest sense, blood that is being carried toward the heart is venous, while blood being carried away from the heart is arterial, according to Dictionary.com. However, with the exception of the blood carried by the pulmonary arteries and veins, blood in the arteries also carries more oxygen


As of 2014, burning 1 gallon of U.S. gasoline results in 17.68 pounds of CO2, according to the Energy Information Administration. The EIA states that the majority of gasoline contains 10 percent ethanol, and is referred to as E10.


The normal CO2 or carbon dioxide levels in the body range from 23 to 29 milliequivalent units per liter of blood, according to Healthline. The test for CO2 determines the level of bicarbonate, which is the chemical that balances the pH of blood, notes WebMD.


Normal CO2 or carbon dioxide levels are between 23 to 30 mEq/L in humans, according to WebMD. However, this is just a reference point as normal ranges vary from lab to lab. The lab report given should contain the normal range for that particular lab.


The normal range for a carbon dioxide blood test is 23 to 29 milliequivalent units per liter, explains Healthline. Normally, doctors order a blood pH level test along with a CO2 blood test. A pH test measures alkalinity or acidity of the blood and helps determine the cause of symptoms.


The partial pressure of CO2 in Earth's atmosphere is 0.3 millimeters of mercury. Partial pressures depend upon the particular mixtures of gases involved. Inside human blood vessels, the partial pressure of CO2 or carbon dioxide is much higher because the mixture of gases inside human blood is differ


Carbon dioxide, or CO2, is a nonpolar molecule. The molecule has a linear geometry due to the molecular arrangement of the compound. It is arranged with a central carbon molecule and two oxygen atoms surrounding the carbon atom.