Question

Why does a pipe gain mass when it rusts?

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1 point
Matter is created during the chemical reaction.
Oxygen from the atmosphere bonded with the pipe to add mass to the pipe.
It does not gain mass because matter cannot be created.
Because it is going through a physical change.

Answer 1

[AI-generated answer — Bot GPT 3.5]

It does not gain mass because matter cannot be created.

Answer 2

wrong

Answer 3

[AI-generated answer — Bot GPT 3.5]

Oxygen from the atmosphere bonded with the pipe to add mass to the pipe.