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Chemistry
A Level

Describe the mechanism for bromination across a double bond

This mechanism is an example of an electrophillic addition reaction.

Firstly consider the approach of a Br2, and how that bond will develop an induced dipole as a result of the high electron densit...

Answered by Lewis O. Chemistry tutor
2139 Views

What are the different types of intermolecular forces?

There are three types of intermolecular forces; 1. Van der Waal forces 2. Dipole-dipole forces 3. Hydrogen bonding Van der waals are the weakest and hydrogen bonding is the strongest. Van der Waal forces ...

Answered by Iona M. Chemistry tutor
17964 Views

Draw the shape of an SF6 and SF4 molecule, indicating bond angles and any lone pairs which may influence these. What shape is the SF6 molecule?

Sulfur is a group six element, meaning it can form up to six bonds with halogen atoms such as F or Cl. In the instance where only four valence electrons of S are bonded to the halogens, the remaining two ...

Answered by Seb D. Chemistry tutor
10536 Views

Why is there a difference in mechanism between tertiary halogenoalkanes and primary halogenoalkanes in nucleophilic substitution?

The difference in mechanism between tertiary halogenoalkanes and primary halogenoalkanes is caused by the difference in relative stability between the two carbocation intermediates formed. In the case of ...

Answered by Nketia O. Chemistry tutor
12426 Views

Explain why the enthalpy of lattice dissociation of potassium oxide is less endothermic than that of sodium oxide.

Lattice dissociation enthalpy is the enthalpy change when one mole of a gaseous ionic lattice dissociates into isolated gaseous ions. The process is endothermic because energy is required to overcome the ...

Answered by Louise J. Chemistry tutor
21682 Views

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