Question

why are bags of chips filled with nitrogen gas

Answer 1

Potato chip bags are not full of air, but of nitrogen gas. This is done to prevent the chips from oxidizing, which is part of what makes them go stale. Oxygen is very reactive, and likes to combine with other molecules whenever it can, causing chemical changes to take place.

Answer 2

bags are not full of air, but of nitrogen gas. This is done to prevent the chipsfrom oxidizing, which is part of what makes them go stale. Oxygen is very reactive, and likes to combine with other molecules whenever it can, causing chemical changes to take placE