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Chemistry
A Level

What is nucleophile?

A nucleophile is a species which can donate a lone pair of electrons to an electron deficient species, known as an electrophile. By doing this, a chemical bond is formed.An example of a reaction involving...

CS
Answered by Claire S. Chemistry tutor
7516 Views

What is chirality/optical isomerism?

Chirality (or optical isomerism) is a physical property of a molecule which has a non-superimposable mirror image. In other words, a molecule which, when reflected cannot be rotated in any way to make the...

MW
Answered by Matthew W. Chemistry tutor
11933 Views

What is the difference between Sn1 and Sn2 reactions?

Both Sn1 and Sn2 reactions are nucleophilic substitution reactions. Sn1 reactions proceed via 2 steps. An example of this is the substitution of a halogen group such as bromine with an OH- group forming ...

JS
Answered by Joseph S. Chemistry tutor
6241 Views

What is Gibbs Free Energy?

Gibbs free energy allows you to link together the two factors entropy and enthalpy, these factors together determine if a chemical reaction is spontaneous or not. For a reaction to be spontaneous then the...

HS
Answered by Helen S. Chemistry tutor
7570 Views

What are the stereochemical implications of bimolecular and unimolecular nucleophilic substitution?

If a chiral molecules undergoes nucleophilic substitution what happens to its stereochemistry?

SN1: These reactions occur with the production of a cationic intermediate. These conta...

HS
Answered by Henry S. Chemistry tutor
5596 Views

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