Carbon dioxide, also known by the chemical formula CO2, has a higher density than the other gases found in air, which makes CO2 heavier than air. Air is composed of approximately 78 percent nitrogen, 21 percent oxygen, a... More »

Nitrogen is the major constituent of Earth's atmosphere, so it is, in a way, exactly as heavy as air. Though nitrogen makes up the bulk of the atmosphere by volume, almost 21 percent of the air is composed of molecular o... More »

Gases that are lighter than air include water vapor, methane, hot air, hydrogen, neon, nitrogen, ammonia and helium. These gases have a lower density than air, which causes them to rise and float in the atmosphere. More »

Carbon dioxide, or CO2, forms a covalent bond. Any compound made up of non-metals will form a covalent bond, while compounds made of a metal and non-metal form an ionic bond. A covalent bond takes place when two atoms sh... More »

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 carb... More »

Carbon dioxide, which has the chemical formula CO2, is non-polar. The symmetrical nature of the carbon dioxide bonds cancels the dipole, which is why carbon dioxide is non-polar. More »

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 ... More »