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Explain in terms of structure and bonding why graphite conducts electricity.

each carbon / atom forms 3 (covalent) bonds one electron per carbon / atom is delocalised (so) these electrons carry charge through the graphite or (so) these electrons move through the structure
EF
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Explain why the first ionisation energy of sulphur is lower than that of phosphorus.

The general trend is that the first ionisation energies increases across the period from Na to Ar. But the first ionisation energy of sulphur is lower than phosphorus because the electronic configuration is ...
LR
Answered by Lana R. • Chemistry tutor
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solid magnesium cannot flow, but liquid magnesium can. Explain why. (3)

In solid magnesium particles are held together and cannot move past each other. Particles in solid Magnesium vibrate. In liquid magnesium particles can move past each other, the reason being the particles in...
HK
Answered by Hashim K. • Chemistry tutor
5919 Views

State the H-O-H bond angle of a water molecule and explain why this is the case.

Oxygen has four groups of electrons surrounding it: two sets of lone pairs, and two pairs of electrons that it shares with hydrogens (in these pairs, one electron comes from each of the oxygen and the hydrog...
JP
Answered by Jasmine P. • Chemistry tutor
22136 Views

What reaction occurs when benzene is mixed with equal amounts of sulphuric and nitric acid?

Intro: This is an electrophilic substitution reaction (nitration)Nitric acid and sulphuric acid are used to create the electrophile (NO 2 + )The electrophile then substitutes itself with a H atom on the benz...
SS
Answered by Simone S. • Chemistry tutor
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