Final answer:
The question covers structural determination of compounds and understanding equilibrium in chemical reactions, focusing on the nitric acid molecule and Le Chatelier's Principle for predicting reaction shifts in conditions of system stress.
Step-by-step explanation:
The question involves determining the structures of compounds and predicting reaction outcomes in chemistry terms. Specifically, the question asks for the determination of the structure of a nitric acid molecule (HNO3) including its Lewis structure, the ONO bond angle prediction, and the nitrogen hybridization. Additionally, it asks about the direction in which reactions proceed towards equilibrium under given conditions.
For the nitric acid molecule, the Lewis structure would show nitrogen in the center with one double bond to one oxygen, two single bonds to an oxygen with hydrogen and an oxygen with a negative charge, respectively. The hybridization of the nitrogen in HNO3 is sp2; this predicts a bond angle of approximately 120 degrees for the ONO atoms.
In dealing with equilibrium, Le Chatelier's Principle is applied to predict how a reaction will shift when the system is stressed by a change such as concentration, pressure, or temperature variation.