What is oxidation-reduction meaning?
An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
What is a oxidation simple definition?
oxidation. [ ŏk′sĭ-dā′shən ] The combination of a substance with oxygen. A reaction in which the atoms in an element lose electrons and the valence of the element is correspondingly increased.
What is oxidation and reduction in chemistry?
Oxidation is the loss of electrons or an increase in the oxidation state of an atom, an ion, or of certain atoms in a molecule. Reduction is the gain of electrons or a decrease in the oxidation state of an atom, an ion, or of certain atoms in a molecule (a reduction in oxidation state).
What does oxidation mean in chemistry?
a loss of electrons
Oxidation is defined as a process in which an electron is removed from a molecule during a chemical reaction. What happens in oxidation? During oxidation, there is a transfer of electrons. In other words, during oxidation, there is a loss of electrons.
How is reduction defined?
noun. the act of reducing or the state of being reduced. the amount by which something is reduced or diminished. a form produced by reducing a copy on a smaller scale.
What is meant by reduction in chemistry?
reduction, any of a class of chemical reactions in which the number of electrons associated with an atom or a group of atoms is increased. The electrons taken up by the substance reduced are supplied by another substance, which is thereby oxidized.
Why is it called reduction and oxidation?
Ernest Z. In the early days of chemistry, oxidation was defined as a gain of oxygen atoms, and reduction was a loss of oxygen atoms. The Hg was said to be reduced because it lost an oxygen atom. Eventually, chemists realized that the reaction involved a transfer of electrons from O to Hg .