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Question:

KO2 (potassium superoxide) is used in oxygen cylinders in space and submarines because it: produces ozone, absorbs CO2, eliminates moisture, absorbs CO2 and increases O2 contents.

produces ozone

eliminates moisture

absorbsCO2and increaseO2contents

absorbsCO2

Solution:

KO2 (potassium superoxide) is used in oxygen cylinders in space and submarines because it absorbs CO2 and increases O2 concentration according to the following reaction: 2CO2 + 4KO2 → 3O2 + 2K2CO3.