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  2. Redox - Wikipedia

    en.wikipedia.org/wiki/Redox

    Redox (/ ˈrɛdɒks / RED-oks, / ˈriːdɒks / REE-doks, reduction–oxidation[2] or oxidation–reduction[3]: 150 ) is a type of chemical reaction in which the oxidation states of the reactants change. [4] Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is the gain of electrons or a decrease in the ...

  3. Half-reaction - Wikipedia

    en.wikipedia.org/wiki/Half-reaction

    Half-reaction. In chemistry, a half reaction (or half-cell reaction) is either the oxidation or reduction reaction component of a redox reaction. A half reaction is obtained by considering the change in oxidation states of individual substances involved in the redox reaction. Often, the concept of half reactions is used to describe what occurs ...

  4. Oxidation state - Wikipedia

    en.wikipedia.org/wiki/Oxidation_state

    Oxidation state. In chemistry, the oxidation state, or oxidation number, is the hypothetical charge of an atom if all of its bonds to other atoms were fully ionic. It describes the degree of oxidation (loss of electrons) of an atom in a chemical compound. Conceptually, the oxidation state may be positive, negative or zero.

  5. Disproportionation - Wikipedia

    en.wikipedia.org/wiki/Disproportionation

    Redox reaction whose products have higher and lower oxidation states than the reactant. In chemistry, disproportionation, sometimes called dismutation, is a redox reaction in which one compound of intermediate oxidation state converts to two compounds, one of higher and one of lower oxidation state. [1][2] The reverse of disproportionation ...

  6. Chemical reaction - Wikipedia

    en.wikipedia.org/wiki/Chemical_reaction

    A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. [1] When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated. Classically, chemical reactions encompass changes that only involve the positions ...

  7. Nicotinamide adenine dinucleotide - Wikipedia

    en.wikipedia.org/wiki/Nicotinamide_adenine_di...

    The balance between the oxidized and reduced forms of nicotinamide adenine dinucleotide is called the NAD + /NADH ratio. This ratio is an important component of what is called the redox state of a cell, a measurement that reflects both the metabolic activities and the health of cells. [26]

  8. Redox gradient - Wikipedia

    en.wikipedia.org/wiki/Redox_gradient

    A redox gradient is a series of reduction-oxidation (redox) reactions sorted according to redox potential. [4][5] The redox ladder displays the order in which redox reactions occur based on the free energy gained from redox pairs. [4][5][6] These redox gradients form both spatially and temporally as a result of differences in microbial ...

  9. Blue bottle experiment - Wikipedia

    en.wikipedia.org/wiki/Blue_bottle_experiment

    Blue bottle reaction video. The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose ...