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In complete combustion, there is a sufficient supply of oxygen which is able to react with the burning hydrocarbon allowing the reaction products H₂O and CO₂ to be formed.
In in...

The enthalpy change of hydrogenation of benzene was shown to be less exothermic than 3 times that of hexene, therefore meaning that benzene does not contain three double bonds. X-ray imaging showed that b...

In cyclohexa-1,3,5-triene the molecule has 3 single bonds and 3 double bonds where all the electrons are localised. As a result the energy needed to hydrogenate cyclohexa-1,3,5-triene is (3x -120kJ/mol) =...

IonicCovalentMetallic
Ionic bonding The electrostatic attraction between positive and negative ions 
Covalent bonding Electrostatic attraction between a shared pair of electrons and the nuclei <...

Mg electronic configuration - [Ne] 3s2, 2+ charge - 2 Electrons removed, Mg2+ configuration - [Ne] - 1s2 2s2 2p6
Be is directly above Mg in the periodic table, meaning Be has its valence electrons in...