(a)[1]
Write the general formula for alkanes.
(b)[1]
State why this reaction is called a photochemical reaction.
(c)[1]
Here, one hydrogen atom is replaced by a chlorine atom. State the name of this type of organic reaction.
(d)[1]
One product in this reaction is chloroethane. Name the other product.
(e(i))[1]
Name the energy change marked A.
(e(ii))[1]
Name the energy change marked B.
(e(iii))[1]
State how the energy profile diagram shows that this reaction is exothermic.
(f)[3]
Use the bond energies in the table to work out 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. • Find the energy change in this reaction.