Gain of oxygen

In these Ccises, chemists say that the carbon and the iron metal have been oxidized to carbon dioxide and rust, respectively. 

In other reactions, you can best see oxidation as the loss of hydrogen. Methyl alcohol (wood dcohoI) can be oxidized to formaldehyde  

In going from methanol to formaldehyde, the compound goes from having four hydrogen atoms to having two hydrogen 

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The concept of redox, either in its elementary form (that is, as the loss or gain of oxygen) or as electron transfer, is a constant theme throughout the syllabus and the associated practical work. The list suggests plenty of varied examples, designated by R, to reinforce the theory. 

Oxidation is (1) loss of electrons (2) gain of oxygen or loss of hydrogen. 

Oxidation is defined as the loss of hydrogen, or the gain of oxygen, or the toss of electrons. 

The most obvious definition of oxidation is the gain of oxygen by a chemical species, as in the burning of methane ... 

Oxidation is defined as a loss of electrons, loss of hydrogen atoms, or gain of oxygen atoms. Sodium metal, is, for example, oxidized to a sodium ion, losing one electron when it reacts with a nonmetal such as chlorine ... 

When a scale of constant thickness has been achieved, there is no further net gain of oxygen, Equation (9.5) ... 

The gain of oxygen and/or loss of hydrogen of an organic substrate. 

Over time, the definitions of oxidation and reduction have been extended to include processes other than the loss or gain of oxygen. With a more modern definition, you can better see why oxidation and reduction always occur together. An atom or ion is said to be oxidized when it loses elec-... 

Oxidation The gain of oxygen, loss of hydrogen, or loss of electrons Reduction The loss of oxygen, gain of hydrogen, or gain of electrons... 

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