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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 ...
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 ...
INTRODUCTION Redox reactions are a type of chemical reaction involving the gain and loss of electrons by electron transfer between diferent chemical species. This type of reaction is essential for many basic life functions such as respiration and photosynthesis. It is also the basis for many everyday processes found in batteries, breathalyzer ...
Photochemistry. Photochemical immersion well reactor (50 mL) with a mercury-vapor lamp. Photochemistry is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet ( wavelength from 100 to 400 nm ), visible (400–750 nm), or infrared ...
the chemical reaction. When the ball reaches the glass panel and sticks to it (a fraction of a second after it was dropped), the instructor explains that the reaction has ceased. The practically instantaneous reaction of aqueous solutions of silver nitrate and sodium chloride is a good example.
In chemistry, a reaction mechanism is the step by step sequence of elementary reactions by which overall chemical reaction occurs. [ 1] A chemical mechanism is a theoretical conjecture that tries to describe in detail what takes place at each stage of an overall chemical reaction. The detailed steps of a reaction are not observable in most cases.
Regarding balancing redox reactions, students‟ alternative conceptions are associated with the introduction of H 2 O, OH-, and H+. For instance, students have explained balancing of redox reactions in acidic medium as H+ ions being introduced just because the reaction occurs in the acidic medium (Adu-Gyamfi et al., 2015). Students have
Organic reactions can be organized into several basic types. Some reactions fit into more than one category. For example, some substitution reactions follow an addition-elimination pathway. This overview isn't intended to include every single organic reaction. Rather, it is intended to cover the basic reactions.