Is stage cloud and fog a chemical reaction?

The stage fog is not a chemical reaction.

The use of dry ice to create clouds and fog on the stage uses dry ice to sublimate and absorb heat, causing water vapor in the surrounding air to condense into water droplets. However, the state changes, which is a physical change.

Notes

Storage

Place dry ice in an insulating box: An insulating box with good thermal insulation effect can slow down the sublimation rate of dry ice.

Because the pressure generated by the sublimation of dry ice can cause an explosion, dry ice cannot be stored in an airtight insulated box.