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  2. SN2 reaction - Wikipedia

    en.wikipedia.org/wiki/SN2_reaction

    The rate of an S N 2 reaction is second order, as the rate-determining step depends on the nucleophile concentration, [Nu −] as well as the concentration of substrate, [RX]. [1] r = k[RX][Nu −] This is a key difference between the S N 1 and S N 2 mechanisms.

  3. Metal ions in aqueous solution - Wikipedia

    en.wikipedia.org/wiki/Metal_ions_in_aqueous_solution

    A metal ion in aqueous solution or aqua ion is a cation, dissolved in water, of chemical formula [M(H 2 O) n] z+.The solvation number, n, determined by a variety of experimental methods is 4 for Li + and Be 2+ and 6 for most elements in periods 3 and 4 of the periodic table.

  4. Nucleophilic substitution - Wikipedia

    en.wikipedia.org/wiki/Nucleophilic_substitution

    It is also due to this carbocation intermediate that the product does not have to have inversion. The nucleophile can attack from the top or the bottom and therefore create a racemic product. It is important to use a protic solvent, water and alcohols, since an aprotic solvent could attack the intermediate and cause unwanted product.

  5. Reaction mechanism - Wikipedia

    en.wikipedia.org/wiki/Reaction_mechanism

    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.

  6. NYT ‘Connections’ Hints and Answers Today, Wednesday, January 15

    www.aol.com/nyt-connections-hints-answers-today...

    If you've been having trouble with any of the connections or words in Wednesday's puzzle, you're not alone and these hints should definitely help you out. Plus, I'll reveal the answers further ...

  7. Solvent effects - Wikipedia

    en.wikipedia.org/wiki/Solvent_effects

    For S N 1 reactions the solvent's ability to stabilize the intermediate carbocation is of direct importance to its viability as a suitable solvent. The ability of polar solvents to increase the rate of S N 1 reactions is a result of the polar solvent's solvating the reactant intermediate species, i.e., the carbocation, thereby decreasing the ...

  8. Caitlin Clark's brother seemingly responds to Mystics owner's ...

    www.aol.com/caitlin-clarks-brother-seemingly...

    Caitlin Clark's brother, Colin, appeared to respond to Washington Mystics owner Sheila Johnson's recent comments about his sister's Time magazine cover for Athlete of the Year.

  9. A drone collided with one of the only Super Scooper planes ...

    www.aol.com/drone-collided-one-only-super...

    The planes are fitted with tanks that skim large bodies of water to "scoop" water up and then drop it on fires from above. A Canadair CL-415 Super Scooper firefighting plane dropping water on a ...