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The oxidation number of any free element is 0. So if it is oxygen by itself (e.g., O2) then the oxidation number/state is 0. In its compounds the oxidation number of oxygen is -2. This rule only stands if it isn't a peroxide such as H2O2 or Na2O2, in peroxide cases, the oxygen is -1.
Lewis Streich
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Why is an atom which accepts an electron called reduced instead of oxidized?
Oxidization is when oxygen is added to an atom. When an electron is added, that is reduction, not oxidization because no oxygen was added.
What are the kinds of fire and its definition?
There is no such thing as different "kinds" of fire. A fire's property depends entirely on the fuel it is burning, and the environment it is burning in. Natural gas burns blue, while gasoline burns a smoke, red-orange flame. The basic definition of fire is the rapid oxidization of something - that is, in laymen terms, the addition of oxygen to a oxidization substance. Fire is, however, very rapid oxidization. Your body also oxidizes sugar that you eat, but at a much slower rate. Rust is the oxidization of iron in air, but very slowly. If you burn steel wool, the iron in the steel is turning into rust from oxidization, but at a much faster rate. An example of simple oxidization is the combustion of hydrogen. When you burn hydrogen in enough oxygen, two hydrogen atoms attach to an oxygen atom in the environment or from an oxidizer, forming water in the form of a vapor. Most combustible substances contains carbon atoms, and thus forms smoke (carbon monoxide and dioxidee). Some other elements, like chlorine and fluorine, can also sustain combustion in place of oxygen. But they are rather dangerous and since oxygen is abundant in our atmosphere, most fires are defined as the oxidization of it.
Why is air needed to burn?
Burning is a rapid oxidization of carbon compounds. Air is the primary source of oxygen for this process to happen.
What is the role of air in making a fire?
Fire is an oxidization of a substance, generally a molecule with carbon. The air provides the oxygen for this reaction to happen.
How does oxidization effect shelf life of tint?
Oxidization reduces the shelf of tint. This is why it is important to prevent exposure to air and water, elements which propagate oxidization.
What occurs when oxygen combines with another compound to form water and carbon dioxide?
This is called combustion or oxidization. For example, from experience, burning an object will release CO2 into the air, and oxygen will rust iron.
Is rusting steel wool a physical or chemical change?
Chemical. Rusting is known as "oxidization," a chemical reaction where oxygen reacts with iron.
What happens when silver reacts with oxygen?
silver reacts with oxigen and it forms aluminum oxide.
Does oxygen rust iron?
Iron ores are frequently iron oxides and don't rust.
What gas does the plant put back into the atmosphere and who uses the gas?
The plant put back oxygen into the atmosphere and the humans (us) use the oxygen to breathe Oxygen is used by all living things as well as playing a part in oxidization Fire corrosion etc
Twhat the chemical reaction of oxygen with other substances is known as?
The chemical reaction of oxygen with other substances is called oxidation.
What rusting of iron?
Oxidization
