Miles mixed two unlabeled solutions together. This caused a bad reaction, and a noxious gas was emitted. Which describes what Miles should do?

A noxious gas can be dangerous to breathe, so Miles should not try to handle or neutralize the reaction himself. He should report the accident immediately and leave the area so others can respond safely. Adding water or pouring the mixture down the sink could worsen the reaction or spread the hazard.

AI-written and checked against the verified answer.