(a(i))[1]
In chemistry, what does the term base mean?
(a(ii))[2]
Write a word equation that shows ammonia acting as a base.
(b(i))[3]
Calculate the volume of chlorine, measured at room temperature and pressure, needed to react completely with 0.68 g of ammonia.
(b(ii))[3]
Use the bond energies in the table to find the energy change, ΔH, for the reaction between ammonia and chlorine. Calculate the energy required to break bonds, the energy released when bonds are made, and the overall energy change, ΔH.
(b(iii))[1]
Is the reaction endothermic or exothermic? Explain your answer.
(c(i))[1]
Explain how this chemical equation indicates that ammonia is acting as a reducing agent.
(c(ii))[2]
Suggest a suitable catalyst from the following metals: aluminium, calcium, platinum, potassium, sodium. Give a reason for your choice.