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A single-displacement reaction, also known as single replacement reaction or exchange reaction, is an archaic concept in chemistry. It describes the stoichiometry of some chemical reactions in which one element or ligand is replaced by atom or group. [1] [2] [3] It can be represented generically as: + +
The two reactions are named according tho their rate law, with S N 1 having a first-order rate law, and S N 2 having a second-order. [2] S N 1 reaction mechanism occurring through two steps. The S N 1 mechanism has two steps. In the first step, the leaving group departs, forming a carbocation (C +). In the second step, the nucleophilic reagent ...
Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur. The substance (or substances) initially involved in a chemical reaction are called reactants or reagents .
This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.
In chemistry, a reactivity series (or reactivity series of elements) is an empirical, calculated, and structurally analytical progression [1] of a series of metals, arranged by their "reactivity" from highest to lowest.
Missouri executed a man Tuesday night for the 2007 sexual assault and murder of a fourth-grade girl who called him "Uncle Chris." Gov. Mike Parson denied his clemency petition earlier this week ...
From April 2009 to December 2012, if you bought shares in companies when Michael E. O’Neill joined the board, and sold them when he left, you would have a 22.1 percent return on your investment, compared to a 67.8 percent return from the S&P 500.
From August 2012 to December 2012, if you bought shares in companies when Dominic P. Murphy joined the board, and sold them when he left, you would have a 3.5 percent return on your investment, compared to a 4.5 percent return from the S&P 500.