In chemical terms, the answer to the question "Why does copper oxidize?" is that the electro potential of copper is higher than that of oxygen. When a metal has an electro potential higher than oxygen, oxidization is a spontaneous reaction that occurs.
It reacts with oxygen in air to form sodium oxide (Na2O) and some sodium peroxide (Na2O2) and reacts with nitrogen to form some sodium nitride (Na3N).
When iron reacts with air, they form ferric oxide.
Iron oxide is typically formed by the reaction of iron with oxygen in the air, not water. Iron reacts with oxygen in the presence of air to form iron oxide. Water does not play a significant role in the formation of iron oxide in this context.
Copper reacts with oxygen in the air to form copper oxide.
Oxygen gas (O2) reacts with copper (Cu) to form copper oxide (CuO).
oxygen reacts with iron and forms rust Oxygen reacts with iron to form iron oxide.
Oxygen in the air reacts with heated sphalerite to form zinc oxide and sulfur dioxide.
Copper reacts with oxygen in the air to form copper oxide. The most common form is black copper(II) oxide (CuO) which gives copper a black coating or tarnish.
When magnesium reacts with air, it forms magnesium oxide. This process is a combustion reaction whereby magnesium burns in the presence of oxygen to produce magnesium oxide and heat. The magnesium metal reacts with oxygen from the air to form a layer of magnesium oxide on its surface.
Silver tarnishes in air because it reacts with the oxygen to form silver oxide.
Copper oxide, a black substance, forms when copper reacts with oxygen in the presence of air.
Burning magnesium reacts with oxygen in the air to form magnesium oxide, which is a white ash-like substance.