When it comes to taking courses in College or University; co-requisite (courses) means that you can take it together with another course; prerequisite means that you have to take the classes and pass before taking any other courses.
CO is Carbon Oxide or carbon and oxygen. They are bonded in a compound. Co is Cobalt. Cobalt is a hard ferromagnetic silver-white bivalent or trivalent metallic element. An element is a pure...
The difference between them is that carbon dioxide contains one molecule of carbon and two molecules of oxygen, carbon monoxide contains only one atom of oxygen to each atom of carbon.
On the periodic table every element has a symbol. The symbol for carbon is C. The symbol for oxygen is O. The symbol for cobalt is Co. So CO is actually a compound comprised of carbon and oxygen call...