A. The car ahead of you is turning
Lavoisier would have taken mercury and heated it up to 350 degrees centigrade in air and then found that a new compound was formed a red or yellow mineral which would be mercury oxide so the experimental observation would be the change in color of the mercury and the formation of a mineral with different properties from pure mercury.
Answer one is D
Answer two is B
Answer three is C
If I’m wrong tell me