Consider the above reaction. If some CO2 were removed from the container, what would the reaction do in an attempt to replace the CO2?

See explanation

Explanation:

The reaction to be considered is shown below;

H2CO3<>CO2 + H2O

We know  that when a constraint such as a sudden change in concentration, pressure or temperature is imposed on  a reaction system in equilibrium, the system has to adjust itself by shifting in a particular direction in order to cancel the constraint.

Now, if we remove CO2, the equilibrium position must shift to the right by the decomposition of more H2CO3 to establish equilibrium again.

gas

explanation:

smoke is the matter of a gas