1. Draw the Lewis structure of HNO₃ . This compound has the nitrogen connected to the 3 oxygen and one the oxygens connected to the hydrogen. What are the formal charges on each of the atoms in this structure? Explain the non zero charges in two ways: in terms of their valence and in terms of the counting of valence electrons.

2. Write down the three Lewis structure for :

the CNO^-1 anion

the NCO^-1 anion

the CON^-1 anion

which anion would you predict to be most stable? least stable? explain.

3. Benzene is often used as an example of resonance and its effects. Show this.