What is produced when a strong base reacts with the bicarbonate buffer system in the human body?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?