Where would (aq) (s) go in Cr(NO3)3+K3PO4

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

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

What occurs when a cell engulfs large food particals