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A quick reaction force (QRF) is an armed military unit capable of rapidly responding to developing situations, usually to assist allied units in need of assistance. They are equipped to respond to any type of emergency within a short time frame, often only a few minutes, based on unit standard operating procedures (SOPs). [ 1 ]
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
An evolutionary psychology explanation is that early animals had to react to threatening stimuli quickly and did not have time to psychologically and physically prepare themselves. [42] The fight or flight response provided them with the mechanisms to rapidly respond to threats against survival. [43] [44]
See List of English words with disputed usage for words that are used in ways that are deprecated by some usage writers but are condoned by some dictionaries. There may be regional variations in grammar, orthography, and word-use, especially between different English-speaking countries.
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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.
The amount produced by chemical synthesis is known as the reaction yield. Typically, yields are expressed as a mass in grams (in a laboratory setting) or as a percentage of the total theoretical quantity that could be produced based on the limiting reagent. [2] A side reaction is an
If the stimulus does not warrant a strong enough response, it is said to not reach absolute threshold, and the body does not react. However, if the stimulus is strong enough to create an action potential in neurons away from the photoreceptor, the body will integrate the information and react appropriately.