Why air and oxygen are not the same thing?

Answer 1

There are a numerous ways through which oxygen can be separated from air. One way is through the usage of fractional distillation of air. This is done by lowering the temperature of air while increasing the pressure. When water vapour and liquid air have cooled off, they are extracted as liquids and then the remaining air is cooled further until a temperature of 90K where the liquid oxygen coos off and is collected and stored in an insulated container.

Answer 2

Pure oxygen is a gas that only contains oxygen - and nothing else. Oxygen is pure when a certain mass (or volume) of it contains no other elements.

As I wrote the above, someone else suggested pure oxygen was pure air. Air on earth is mostly nitrogen (about 75%), 20% oxygen, with smaller amounts of argon, water vapor, CO2, and other gasses.

Answer 3

No. Oxygen is a specific chemical found on the period table, it's the part of the air that we breathe. Air is everything around us, made up of several chemicals, such as oxygen, hydrogen and carbon.

Answer 4

Oxygen is an elemental gas usually found in the form of O2. Air is the mixture of gasses that make up earth's atmosphere. Oxygen is just one of those gasses, composing about 21% of it by volume. 78% of air is nitrogen and another 1% is composed of a variety of other gasses.

Answer 5

Air is a mixture of gases, including oxygen, nitrogen, carbon dioxide, and others, whereas oxygen is a single element found in the air. The air we breathe typically contains about 21% oxygen along with other gases. Oxygen is essential for most living organisms to survive, while air is the combination of gases present in the Earth's atmosphere.

Answer 6

there is only about 20.9% oxygen in air. 78.1% is Nitrogen

Answer 7

No. Oxygen is an element present (20% approx.) in air as O2

Answer 8

The ozone is not a breathable gas. Oxygen and ozone are both formed from oxygen but are very different.