Here's why:
* "A bottle of oxygen": What kind of bottle? Was it sealed or open? What was the volume of the bottle?
* "Over air": What does this mean? Was the bottle placed on top of an air sample? Was it submerged in air? Was the air in a container?
To understand the results of an experiment, we need to know what was being measured and how the experiment was set up.
For example, if the experiment was measuring the diffusion of oxygen into air, we'd need to know:
* How long the oxygen was in contact with the air.
* The concentration of oxygen in the air after a certain period.
* Whether the air was static or flowing.
To give you a useful answer, please provide more details about the experiment.
