If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

What are the major types of a chemical compound