Answer
Please see the work below.
Work Step by Step
We know that the required chemical reactions are given as
a.$Li_2O+CO_2\rightarrow Li_2CO_3$
b.$2Na_2O_2+2CO_2\rightarrow 2Na_2CO_3+O_2$
c. $4KO_2+2CO_2\rightarrow 2K_2CO_3+3O_2$
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