According to the chemical equation
4KO2(s) + 2CO2(g) ---> 2K2CO3(s)
a) how many molecules of carbon dioxide react with two
formula units of KO2?
According to the balanced chemical equation two molecules of
carbon dioxide react when four formula units of potassium
superoxide react. Carbon dioxide and potassium superoxide always
react in this ratio according to this equation. We can use this
relationship as a unit conversion factor to convert between
potassium superoxide and carbon dioxide.
This conversion between potassium superoxide and carbon
dioxide tells us the one molecule of carbon dioxide reacts with
two formula units of potassium superoxide.