(NEED HELP ASAP)

Match the action to the effect on the equilibrium position for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g). (3 points)

1.

Adding a catalyst

2.

Removing hydrogen gas

3.

Increasing the pressure

a.

Shift to the right

b.

Shift to the left

c.

No effect