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Why does an ionic compound (e.g. NaCl) conduct electricity when molten or dissolved in water, but not when it is a solid.

When an ionic compound is a solid, the ions in the ionic lattice are held together by ionic bonds. Due to this, the ions are not free to move around and so cannot carry a charge. When the ionic compound is m...
AH
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What evidences are used to prove that Benzene's kekule model is incorrect and that Benzene has a delocalised Pi structure.

The enthalpy Change of Hydration for cyclohexene is 120 kJmol -1 therefore if the Kekule model is correct then the Enthalpy change of Hydration would be 360 kJmol -1 however as it is considerably less than t...
MA
Answered by Muin A. • Chemistry tutor
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Explain the polarity of both CH3CH2Br and CBr3CBr3.

Both molecules have a C-Br bond, which will be polar due to their difference in electronegativities (bromine is more electronegative than carbon). In CBr3CBr3 the dipoles cancel so the overall molecule is no...
DD
Answered by David D. • Chemistry tutor
21590 Views

State 2 features of a system that is in dynamic equilibrium.

In dynamic equilibrium the rate of the foward reaction is equal to the rate of backward reaction. Also the concentration of the products and reactants stay constant.
MB
Answered by Moin B. • Chemistry tutor
12651 Views

Describe why phenol reacts more readily with bromine than benzene does.

(labelled diagrams of both benzene and phenol would be used to show the overlapping p orbitals above and below the plane of the molecule, with phenol showing the partial delocalisation of the oxygen lone pai...
AJ
Answered by Abigail J. • Chemistry tutor
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