scientists can use absorption spectra to analyze unknown substances. identify the elements present in the sample that produces the spectra in figure 2.

lol idk man i guess u gotta ask bill nye the science guy

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

i believe the answer is three water molecules