What can go together with oxygen?

Answer 1

Carbon to form carbon monoxide and carbon dioxide.

Hydrogen to form water.

Nitrogen to form nitrous oxide and nitric oxide

Sulphur to form sulphur dioxide.

Iron to form ferric oxide (rust)

Aluminium to form aluminum oxide

and many more

Answer 2

This is a poorly worded question. It is too vague as to what range of things there are (as anything can be a thing) and what it means "to have" in this context. Many molecules (the building blocks of matter) contain oxygen (notably the oxides and the -ates) and many organic (living or dead) materials include oxygen. Oxygen also exists as a gas in our atmosphere. Thus any container filled with air has oxygen. Water is made from hydrogen and oxygen (H2O) and also contains dissolved oxygen. Plants use sunlight to make sugars from carbon dioxide, releasing oxygen and so are very important to animals, the destruction of forests causing many problems including the greenhouse effect, caused by a surplus of carbon dioxide. Generally any chemical name ending in "ate" has oxygen so for example sodium bicarbonate contains sodium, carbon and oxygen. Since oxygen is the basis of many reactions, including many explosive ones, oxidants, substances that contain easily liberated oxygen are important to chemistry. Oxidation, the addition of oxygen, is similarly important, most famously in burning stuff, the rusting of iron, and other metals or the bruising of fruit.

Answer 3

hydrogen