chemistry help?

Question

The following reaction is at equilibrium at one atmosphere, in a closed container.
NaOH(s) + CO2(g) ↔ NaHCO3(s)
Which, if any, of the following actions will decrease the total amount of CO2 gas present at equilibrium?
adding N2 gas to double the pressure
adding more solid NaOH
decreasing the volume of the container
removing half of the solid NaHCO3
none of the above

Answer 1

Adding N2 and decreasing the volume of the container will reduce the proportion of CO2 at equilibrium.

Answer 2

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