Air is a mixture of gasses, about 78% nitrogen, 21% oxygen and then a dash of others. Nitrogen OTOH is one of the elements out of the Periodic Table, which I guess is what you mean with a pure substance.
Air is a mixture of gasses, about 78% nitrogen, 21% oxygen and then a dash of others. Nitrogen OTOH is one of the elements out of the periodic table, which I guess is what you mean with a pure substance.
No, it is composed of nitrogen, oxygen, water vapor, carbon dioxide and other gasses.
Air is a mixture of several gases, most notably nitrogen, oxygen, and some trace gases (eg, argon).
No. It is only about 21% oxygen. Air is about 78% nitrogen.
Air is considered a pure substance because it is a homogeneous mixture of gases, mainly nitrogen, oxygen, carbon dioxide, and trace amounts of other gases. Each component of air retains its unique chemical properties and cannot be separated by physical means without changing the composition of air.
Air isn't a pure substance, it is a mixture of a bunch of other gases mainly Nitrogen and Oxygen with small amounts of other gases.
No. Air is a mixture of gases, predominantly nitrogen and oxygen but also including carbon dioxide, water vapor, and noble gases.
carbon, nitrogen and oxygen
Pure air consists of a mixture of gases like nitrogen, oxygen, carbon dioxide, and others, so it is not considered a pure substance. However, if the air is free from pollutants like chemicals or particulate matter, it would be considered clean and unpolluted.
Pure mountain air is not a pure chemical substance, but rather a mixture of various gases including nitrogen, oxygen, carbon dioxide, and others. The composition of mountain air can vary depending on factors such as elevation and surrounding pollution levels.
Air is a compound gas, but techically speaking it is definitely not a chemical substance. The main components of air are nitrogen (78% ) and oxygen (20.95%) and yes, those ARE chemical substances. Chemistry, as well as other sciences, requires you to be very specific with concepts and language.
Air cannot be classified as a substance because it is a mixture of various gases like nitrogen, oxygen, and carbon dioxide. Substances, on the other hand, are pure materials composed of one type of atom or molecule.