After each event listed, indicate how the concentration of each species in the chemical equation will change to reach equilibrium. An up arrow indicates an increase in concentration, a down arrow indicates a decrease in concentration, and leaving it blank means there is no change in the concentration.

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2CO(g)
+
O2(g)
↽−−⇀
2CO2(g)

increasing the concentration of CO

increasing the concentration of CO2

decreasing the volume of the system