Substitute exothermal chemical reaction for pressurized air and exhaust plume and rocket body for water and bottle and you got it!
By that logic, the "water" bottle rocket, could just be an "air" bottle rocket. If you find such an example, you will have powerful evidence to support your case.
Let me be clear:
If you find instructions, or a video, using a normal plastic bottle, compressed air, but does not use a liquid, you will have something that I couldn't ignore.
Do you mean something like a regular party balloon?
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The compressed air in the balloon creates a force pair with the air in the room. The air in the room moves the balloon. Much like you walking creates a force pair between your shoes and the ground.
Basic physics.
HHAHAHAHAHHAHAHHAHAHAHAHAHA...........hahahahaahahaha
HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA..... ok I'm done now.
I think the force pair you are looking for in reference to rockets in space is: the rocket and the expelled fuel
Edit: Lemme guess your responses:
"Liar!"
"Shoa meh teh experimints"
"SZIENZZ and EXPERIMINTS"
"I have no idea how to counter this debate"
I'll admit the last one was giving you way too much credit.