Oxygene

After a discrepancy in the particles and flow of the world occurred in the land of gases.. 

Oxygen is trying to begin a mysterious journey to find out what is behind these mysterious events. On its way, it will encounter gases that are weaker than it, or equal in strength, or perhaps stronger than it, but every time it develops its expertise and doubles its molecular weight, which increases the strength of its flow, so I wonder if he will know the reason for what is happening?