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Chemistry
A Level

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...

Answered by Helen S. Chemistry tutor
7304 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...

Answered by Henry S. Chemistry tutor
5381 Views

Why are solutions of transition metal ions often coloured

Transition metal ions have, by definition, at least one partly filled d orbital (eg:3d). When in a solution, the positive charge of the transition metal ions can cause the lone elctron pairs of other ...

Answered by Stuart A. Chemistry tutor
6579 Views

What is the ideal gas equation?

The ideal gas equation, pV = nRT, is an equation used to calculate either the pressure, volume, temperature or number of moles of a gas. 

73429 Views

Why does AlCl3 form the dimer Al2Cl6?

AlCl3 has a trigonal planar structure. There is an aluminium atom with 3 sp2 hybridised orbitals which bond to 3 chlorine atoms. The bond angle is 120 degrees. Each chlorine atom...

Answered by Jonathan W. Chemistry tutor
51044 Views

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