A chromatogram has three bands

with Rf values of 0.25, 0.47 and 0.82.

Which value corresponds to the

material with the highest molecular

weight?

Matches the chemical name of each oxide of phosphorus to its chemical formula

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin