Le Chatelier's Principle

What will happen to the equilibrium position of the reaction $A \rightleftharpoons B$ if the concentration of $A$ is increased?

In the reaction $N_{2}(g) + 3H_{2}(g) \rightleftharpoons 2NH_{3}(g)$, what will happen if the pressure is increased?

What effect does adding an inert gas at constant volume have on the equilibrium of the reaction $C + D \rightleftharpoons E + F$?

In the exothermic reaction $P + Q \rightleftharpoons R + S$, what happens when the temperature is increased?

For the reaction $2NO(g) + O_{2}(g) \rightleftharpoons 2NO_{2}(g)$, what will happen if the concentration of is decreased?

In the reaction $A(g) + B(g) \rightleftharpoons C(g)$, if a catalyst is added, what effect does it have on the equilibrium?

What effect does increasing the concentration of product $D$ in the reaction $A + B \rightleftharpoons C + D$ have?

For the reaction $2H_{2}(g) + O_{2}(g) \rightleftharpoons 2H_{2}O(g)$, what happens if water vapor is removed from the system?