(a)[5]
Describe the bonding and structure of these two substances, and explain how they differ in volatility and electrical conductivity.
(b(i))[1]
What is the function of the catalyst?
(b(ii))[2]
Complete the equation for this reaction. $\text{N}_2 + \ldots \text{H}_2 \rightarrow \ldots \text{NH}_3$
(b(iii))[2]
Complete the electronic structure for a molecule of ammonia. Show only the outer electrons.
(b(iv))[2]
In this reaction, which compound is reduced? Explain your answer.