if a helium balloon pops during the night and has a snowy layer formed on the inside surface, there are a few possible explanations:
Condensation: If the air inside the balloon is humid and the temperature drops significantly during the night, condensation can occur. When warm, moist air comes into contact with a colder surface, such as the inside of the balloon, the water vapor in the air can condense and form tiny droplets or a frost-like layer.
Freezing: If the temperature drops low enough, any remaining moisture or liquid inside the balloon can freeze, resulting in a layer of ice or frost on the inner surface.
Chemical Reaction: In some cases, the material of the balloon or any substances inside it can undergo chemical reactions when exposed to air or temperature changes. These reactions could potentially result in the formation of a snowy or frosty layer.
To determine the specific cause, it would be helpful to consider factors such as the temperature and humidity conditions, the type of balloon material, and any substances that might have been present inside the balloon.