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Alkenes contain a pi bond, which is a site of high electron density, since it contains a pair of electrons delocalised around the two bonded carbon atoms. Because of this, the pi bond can act as a nucleop...

Reaction : N2 + 3H2---> 2NH3 is in equilibrium The reaction is exothermic (produces heat) so the equilibrium will favor the left at high temperatures following Le Chatelier's principle. This is to redu...

Compared to water ice is less dense this is due to hydrogen bonds in the open lattice holding the H₂O molecules apart whereas in liquid form the hydrogen bonds break allowing the molecules of w...

As you go down group 2, atom size increases. Larger atoms experience more shielding. There is an increase in nuclear charge going down group 2 elements so you would expect the outer electrons to be held m...

The general trend is that the first ionisation energies increase across the period.First ionisation energies increase across the period as from Lithium to Fluorine the nuclear charge is increasing yet the...