A student needs a minimum of 90 mL of working reagent for a procedure to test patient specimens. The procedure requires that a 1:4 ratio of the activator with reagent is needed for the working solution. How should the student proceed?

Match the anticoagulant with the best description

What is the molarity of a solution containing 30 g of NaCl per liter? The GMW of NaCl is 58.5g.

The photoelectric effect can only take place with electrons in the K and L shells.

Lead is a great absorber of x-rays.

The probability of photoelectric absorption depends on the photon energy.

Photoelectric effect is the predominant x-ray interaction in the field of radiation therapy. 

Compton interactions are independent of atomic number.

The threshold energy of pair production is 1.02 MeV.

What are the three different types of Compton scatter?