What is the term for very concentrated solutions that can be diluted to a particular strength when required?

A(n) ________ is used to maintain a specific temperature to achieve a specific result

a. photometer b. centrifuge c. incubator d. autoclave

How should you approach an "emptied" tank?

a. Treat it like a potential flammable or toxic source. b. Feel free to cut into it c. As if no hazard exists. d. With limited PPE or fire suppression available; after all, it's empty.