State the general formula for alkenes.
Describe the colour change observed when ethene is bubbled through aqueous bromine. from ................. to .................
In this reaction, a single product is made from two reactants. Name this type of organic reaction.
The reaction is exothermic. Complete the energy profile diagram for this reaction. Include: • where the products should be placed • an arrow showing the activation energy, labelled as A • an arrow showing the energy change for the reaction.
Use the bond energies in the table to calculate the energy change in this reaction. Follow these steps. • Work out the energy required to break bonds. • Work out the energy released when bonds are made. • Calculate the energy change in this reaction.